//www.koonmotors.com/news/space_time/extrasolar_planets/ Extrasolar Planet News. Astronomers discover extrasolar planets in a nearby star system. Could extrasolar planets support life? Images, full-text articles. Free. en-us Wed, 06 Sep 2023 14:50:00 EDT Wed, 06 Sep 2023 14:50:00 EDT 60 //www.koonmotors.com/images/scidaily-logo-rss.png//www.koonmotors.com/news/space_time/extrasolar_planets/ For more science news, visit ScienceDaily. //www.koonmotors.com/releases/2023/08/230831121751.htm Scientists have detected and validated two of the longest-period exoplanets found by TESS to date. These long period large exoplanets orbit a K dwarf star and belong to a class of planets known as warm Jupiters, which have orbital periods of 10-200 days and are at least six times Earth's radius. This recent discovery offers exciting research opportunities for the future of finding long-period planets that resemble those in our own solar system. Thu, 31 Aug 2023 12:17:51 EDT //www.koonmotors.com/releases/2023/08/230831121751.htm //www.koonmotors.com/releases/2023/08/230831121723.htm A Neptune-sized planet denser than steel has been discovered by an international team of astronomers, who believe its composition could be the result of a giant planetary clash. Thu, 31 Aug 2023 12:17:23 EDT //www.koonmotors.com/releases/2023/08/230831121723.htm //www.koonmotors.com/releases/2023/08/230811172145.htm 超级风暴经常出现在土星、破坏relatively bland surface before disappearing. But radio observations show that the storms have long-lasting effects deeper in the atmosphere, in particular in the distribution of ammonia. Using NRAO's Very Large Array, astronomers see such impacts from storms that happened hundreds of years ago. The findings will help explain the differences between storms on the gas giants Saturn and Jupiter. Fri, 11 Aug 2023 17:21:45 EDT //www.koonmotors.com/releases/2023/08/230811172145.htm //www.koonmotors.com/releases/2023/08/230803213810.htm An international team of scientists have discovered an unusual Jupiter-sized planet orbiting a low-mass star called TOI-4860, located in the Corvus constellation. Thu, 03 Aug 2023 21:38:10 EDT //www.koonmotors.com/releases/2023/08/230803213810.htm //www.koonmotors.com/releases/2023/07/230727144140.htm A young planet whirling around a petulant red dwarf star is changing in unpredictable ways orbit-by-orbit. It is so close to its parent star that it experiences a consistent, torrential blast of energy, which evaporates its hydrogen atmosphere -- causing it to puff off the planet. Thu, 27 Jul 2023 14:41:40 EDT //www.koonmotors.com/releases/2023/07/230727144140.htm //www.koonmotors.com/releases/2023/07/230727143148.htm As the next generation of giant, high-powered observatories begin to come online, a new study suggests that their instruments may offer scientists an unparalleled opportunity to discern what weather may be like on far-away exoplanets. Thu, 27 Jul 2023 14:31:48 EDT //www.koonmotors.com/releases/2023/07/230727143148.htm //www.koonmotors.com/releases/2023/07/230726171252.htm Astronomers have discovered new evidence of how planets as massive as Jupiter can form. Wed, 26 Jul 2023 17:12:52 EDT //www.koonmotors.com/releases/2023/07/230726171252.htm //www.koonmotors.com/releases/2023/07/230725123025.htm Astronomers have gained new clues about how planets as massive as Jupiter could form. Researchers have detected large dusty clumps, close to a young star, that could collapse to create giant planets. Tue, 25 Jul 2023 12:30:25 EDT //www.koonmotors.com/releases/2023/07/230725123025.htm //www.koonmotors.com/releases/2023/07/230724122754.htm Water is essential for life as we know it. However, scientists debate how it reached the Earth and whether the same processes could seed rocky exoplanets orbiting distant stars. New insights may come from the planetary system PDS 70, located 370 light-years away. The star hosts both an inner disk and outer disk of gas and dust, separated by a 5 billion-mile-wide (8 billion kilometer) gap, and within that gap are two known gas-giant planets. Mon, 24 Jul 2023 12:27:54 EDT //www.koonmotors.com/releases/2023/07/230724122754.htm //www.koonmotors.com/releases/2023/07/230719112636.htm Astronomers have found the possible 'sibling' of a planet orbiting a distant star. The team has detected a cloud of debris that might be sharing this planet's orbit and which, they believe, could be the building blocks of a new planet or the remnants of one already formed. If confirmed, this discovery would be the strongest evidence yet that two exoplanets can share one orbit. Wed, 19 Jul 2023 11:26:36 EDT //www.koonmotors.com/releases/2023/07/230719112636.htm //www.koonmotors.com/releases/2023/07/230713142116.htm A billowing pair of nearly symmetrical loops of dust and gas mark the death throes of an ancient red-giant star. The resulting structure, said to resemble an old style of English jug, is a rarely seen bipolar reflection nebula. Evidence suggests that this object formed by the interactions between the dying red giant and a now-shredded companion star. Thu, 13 Jul 2023 14:21:16 EDT //www.koonmotors.com/releases/2023/07/230713142116.htm //www.koonmotors.com/releases/2023/06/230628130448.htm An international research team has observed disks around 19 protostars with a very high resolution to search for the earliest signs of planet formation. This survey was motivated by the recent findings that planet formation may be well-underway in the more-evolved proto-planetary disks, but until now there had been no systematic study to search for signs of planet formation in younger protostellar systems. Wed, 28 Jun 2023 13:04:48 EDT //www.koonmotors.com/releases/2023/06/230628130448.htm //www.koonmotors.com/releases/2023/06/230628130343.htm The star would have inflated up to 1.5 times the planet's orbital distance -- engulfing the planet in the process -- before shrinking to its current size at only one-tenth of that distance. Wed, 28 Jun 2023 13:03:43 EDT //www.koonmotors.com/releases/2023/06/230628130343.htm //www.koonmotors.com/releases/2023/06/230627225241.htm Scientists studying the protoplanetary disk around a young star have discovered the most compelling chemical evidence to date of the formation of protoplanets. The discovery will provide astronomers with an alternate method for detecting and characterizing protoplanets when direct observations or imaging are not possible. Tue, 27 Jun 2023 22:52:41 EDT //www.koonmotors.com/releases/2023/06/230627225241.htm //www.koonmotors.com/releases/2023/06/230621105434.htm 如何关闭一颗岩石行星是一颗恒星,和性病吗ll sustain water and life? A recently discovered exoplanet may be key to solving that mystery. Wed, 21 Jun 2023 10:54:34 EDT //www.koonmotors.com/releases/2023/06/230621105434.htm //www.koonmotors.com/releases/2023/06/230614220621.htm Over the past decades, researchers thought Earth was created over a period of more than 100 million years. However, a new study from suggests that the creation of Earth was much more rapid, and that water and other essential ingredients for life were delivered to Earth very early on. Wed, 14 Jun 2023 22:06:21 EDT //www.koonmotors.com/releases/2023/06/230614220621.htm //www.koonmotors.com/releases/2023/06/230614220619.htm Through the Gemini-North Telescope in Hawai'i, the chemical composition of WASP-76 b is revealed in unprecedented detail, giving new insights also into the composition of giant planets. Wed, 14 Jun 2023 22:06:19 EDT //www.koonmotors.com/releases/2023/06/230614220619.htm //www.koonmotors.com/releases/2023/06/230612114702.htm New simulations offer new explanation for star's 85-year flare. In this scenario, a young giant planet is burning up very close to its star, suggesting solar systems may have hosted many of such planets that have since 'evaporated'. Mon, 12 Jun 2023 11:47:02 EDT //www.koonmotors.com/releases/2023/06/230612114702.htm //www.koonmotors.com/releases/2023/06/230612114651.htm An international team of astronomers has announced the second-ever discovery of a multiplanetary circumbinary system. Mon, 12 Jun 2023 11:46:51 EDT //www.koonmotors.com/releases/2023/06/230612114651.htm //www.koonmotors.com/releases/2023/06/230608195742.htm Astronomers challenge longstanding beliefs about the isolation of 'hot Jupiters' and proposes a new mechanism for understanding the exoplanets' evolution. Thu, 08 Jun 2023 19:57:42 EDT //www.koonmotors.com/releases/2023/06/230608195742.htm //www.koonmotors.com/releases/2023/06/230608120947.htm Astronomers have clearly identified the existence of four new exoplanets. The four mini-Neptunes are smaller and cooler, and more difficult to find than the so-called Hot Jupiter exoplanets which have been found in abundance. Thu, 08 Jun 2023 12:09:47 EDT //www.koonmotors.com/releases/2023/06/230608120947.htm //www.koonmotors.com/releases/2023/05/230531150101.htm There's an intriguing exoplanet out there -- 400 light-years out there -- that is so tantalizing that astronomers have been studying it since its discovery in 2009. One orbit for WASP-18 b around its star that is slightly larger than our Sun takes just 23 hours. There is nothing like it in our Solar System. A new study about this exoplanet, an ultra-hot gas giant 10 times more massive than Jupiter. Wed, 31 May 2023 15:01:01 EDT //www.koonmotors.com/releases/2023/05/230531150101.htm //www.koonmotors.com/releases/2023/05/230530125403.htm With the help of citizen scientists, astronomers discovered what may be the last three planets that the Kepler Space Telescope saw before it was retired. Tue, 30 May 2023 12:54:03 EDT //www.koonmotors.com/releases/2023/05/230530125403.htm //www.koonmotors.com/releases/2023/05/230529171755.htm A third of the exoplanets orbiting common M dwarf stars have gentle enough orbits to potentially be in the habitable zone capable of hosting liquid water. Mon, 29 May 2023 17:17:55 EDT //www.koonmotors.com/releases/2023/05/230529171755.htm //www.koonmotors.com/releases/2023/05/230525141511.htm Astronomers are suggesting a new way to expand the search for habitable planets that takes into account a zone not previously considered: the space between the star and what's called soot-line in planet-forming disks. Thu, 25 May 2023 14:15:11 EDT //www.koonmotors.com/releases/2023/05/230525141511.htm //www.koonmotors.com/releases/2023/05/230525141455.htm A study presents the detection of a system of two planets slightly larger than Earth orbiting a cold star in a synchronized dance. Named TOI-2096, the system is located 150 light-years from Earth. This system, located 150 light-years from Earth, is one of the best candidates for a detailed study of their atmosphere with the JWST space telescope. Thu, 25 May 2023 14:14:55 EDT //www.koonmotors.com/releases/2023/05/230525141455.htm //www.koonmotors.com/releases/2023/05/230517122059.htm Astronomers have discovered an Earth-size exoplanet, or world beyond our solar system, that may be carpeted with volcanoes. Called LP 791-18 d, the planet could undergo volcanic outbursts as often as Jupiter's moon Io, the most volcanically active body in our solar system. Wed, 17 May 2023 12:20:59 EDT //www.koonmotors.com/releases/2023/05/230517122059.htm //www.koonmotors.com/releases/2023/05/230515131947.htm Astronomers have described the first radiation belt observed outside our solar system, using a coordinated array of 39 radio dishes from Hawaii to Germany to obtain high-resolution images. The images of persistent, intense radio emissions from an ultracool dwarf reveal the presence of a cloud of high-energy electrons trapped in the object's powerful magnetic field, forming a double-lobed structure analogous to radio images of Jupiter's radiation belts. Mon, 15 May 2023 13:19:47 EDT //www.koonmotors.com/releases/2023/05/230515131947.htm //www.koonmotors.com/releases/2023/05/230510120503.htm Researchers observed exoplanet GJ 1214b's atmosphere by measuring the heat it emits while orbiting its host star. Astronomers directly detected the light emitted by a sub-Neptune exoplanet -- a category of planets that are larger than Earth but smaller than Neptune. Wed, 10 May 2023 12:05:03 EDT //www.koonmotors.com/releases/2023/05/230510120503.htm //www.koonmotors.com/releases/2023/05/230504111846.htm 年轻的恒星TW长蛇玩“影子傀儡s' with scientists observing it with NASA's Hubble Space Telescope. In 2017, astronomers reported discovering a shadow sweeping across the face of a vast pancake-shaped gas-and-dust disk surrounding the red dwarf star. The shadow isn't from a planet, but from an inner disk slightly inclined relative to the much larger outer disk -- causing it to cast a shadow. One explanation is that an unseen planet's gravity is pulling dust and gas into the planet's inclined orbit. The young star TW Hydrae is playing 'shadow puppets' with scientists observing it with NASA's Hubble Space Telescope. Now, a second shadow -- playing a game of peek-a-boo -- has emerged in just a few years between observations stored in Hubble's MAST archive. This could be from yet another disk nestled inside the system. The two disks are likely evidence of a pair of planets under construction. Thu, 04 May 2023 11:18:46 EDT //www.koonmotors.com/releases/2023/05/230504111846.htm //www.koonmotors.com/releases/2023/05/230503121315.htm Scientists have observed a star swallowing a planet for the first time. Earth will meet a similar fate in 5 billion years. Wed, 03 May 2023 12:13:15 EDT //www.koonmotors.com/releases/2023/05/230503121315.htm //www.koonmotors.com/releases/2023/05/230501143017.htm Astronomers used NASA's James Webb Space Telescope to study a rocky exoplanet known as GJ 486 b. It is too close to its star to be within the habitable zone, with a surface temperature of about 800 degrees Fahrenheit (430 degrees Celsius). And yet, their observations show hints of water vapor. Mon, 01 May 2023 14:30:17 EDT //www.koonmotors.com/releases/2023/05/230501143017.htm //www.koonmotors.com/releases/2023/04/230424133426.htm A research team has confirmed evidence of a previously unknown planet outside of our solar system, and they used machine learning tools to detect it. A recent study by the team showed that machine learning can correctly determine if an exoplanet is present by looking in protoplanetary disks, the gas around newly formed stars. The newly published findings represent a first step toward using machine learning to identify previously overlooked exoplanets. Mon, 24 Apr 2023 13:34:26 EDT //www.koonmotors.com/releases/2023/04/230424133426.htm //www.koonmotors.com/releases/2023/04/230418142335.htm A star's chemical composition strongly influences the ultraviolet radiation it emits into space and thus the conditions for the emergence of life in its neighborhood. Tue, 18 Apr 2023 14:23:35 EDT //www.koonmotors.com/releases/2023/04/230418142335.htm //www.koonmotors.com/releases/2023/04/230414113529.htm An international team of astronomers announced the first exoplanet discovered through a combined approach of direct imaging and precision measurements of a star's motion on the sky. This new method promises to improve the efficiency of exoplanet searches, paving the way for the discovery of an Earth twin. Fri, 14 Apr 2023 11:35:29 EDT //www.koonmotors.com/releases/2023/04/230414113529.htm //www.koonmotors.com/releases/2023/04/230413154452.htm Astronomers report the first exoplanet jointly discovered through direct imaging and precision astrometry, a new indirect method that identifies a planet by measuring the position of the star it orbits. Data from the Subaru Telescope in Hawai`i and space telescopes from the European Space Agency (ESA) were integral to the team's discovery. Thu, 13 Apr 2023 15:44:52 EDT //www.koonmotors.com/releases/2023/04/230413154452.htm //www.koonmotors.com/releases/2023/04/230412131118.htm Our planet's water could have originated from interactions between the hydrogen-rich atmospheres and magma oceans of the planetary embryos that comprised Earth's formative years. Wed, 12 Apr 2023 13:11:18 EDT //www.koonmotors.com/releases/2023/04/230412131118.htm //www.koonmotors.com/releases/2023/04/230404133318.htm Earth's magnetic field does more than keep everyone's compass needles pointed in the same direction. It also helps preserve Earth's sliver of life-sustaining atmosphere by deflecting high energy particles and plasma regularly blasted out of the sun. Researchers have now identified a prospective Earth-sized planet in another solar system as a prime candidate for also having a magnetic field -- YZ Ceti b, a rocky planet orbiting a star about 12 light-years away from Earth. Tue, 04 Apr 2023 13:33:18 EDT //www.koonmotors.com/releases/2023/04/230404133318.htm //www.koonmotors.com/releases/2023/04/230403100254.htm A study has detected the presence of large quantities of complex organic molecules in one of the nearest star forming regions to the solar system. Mon, 03 Apr 2023 10:02:54 EDT //www.koonmotors.com/releases/2023/04/230403100254.htm //www.koonmotors.com/releases/2023/03/230327163230.htm Astronomers have found the atmospheric compositions of giant planets out in the galaxy do not fit our own solar system trend. Mon, 27 Mar 2023 16:32:30 EDT //www.koonmotors.com/releases/2023/03/230327163230.htm //www.koonmotors.com/releases/2023/03/230327163227.htm An international team of researchers has used NASA's James Webb Space Telescope to measure the temperature of the rocky exoplanet TRAPPIST-1 b. The measurement is based on the planet's thermal emission: heat energy given off in the form of infrared light detected by Webb's Mid-Infrared Instrument (MIRI). The result indicates that the planet's dayside has a temperature of about 500 kelvins (roughly 450 degrees Fahrenheit) and suggests that it has no significant atmosphere. Mon, 27 Mar 2023 16:32:27 EDT //www.koonmotors.com/releases/2023/03/230327163227.htm //www.koonmotors.com/releases/2023/03/230322082657.htm Following enormous collisions, such as asteroid impacts, some amount of material from an impacted world may be ejected into space. This material can travel vast distances and for extremely long periods of time. In theory this material could contain direct or indirect signs of life from the host world, such as fossils of microorganisms. And this material could be detectable by humans in the near future, or even now. Wed, 22 Mar 2023 08:26:57 EDT //www.koonmotors.com/releases/2023/03/230322082657.htm //www.koonmotors.com/releases/2023/03/230322082654.htm With the first paper compiling all known information about planets like Venus beyond our solar system, scientists are the closest they've ever been to finding an analog of Earth's 'twin.' Wed, 22 Mar 2023 08:26:54 EDT //www.koonmotors.com/releases/2023/03/230322082654.htm //www.koonmotors.com/releases/2023/03/230316124434.htm In a new study, astronomers describe how extraterrestrial life has the potential to exist on distant exoplanets inside a special area called the 'terminator zone,' which is a ring on planets that have one side that always faces its star and one side that is always dark. Thu, 16 Mar 2023 12:44:34 EDT //www.koonmotors.com/releases/2023/03/230316124434.htm //www.koonmotors.com/releases/2023/03/230307073158.htm A terrestrial planet hovering between Mars and Jupiter would be able to push Earth out of the solar system and wipe out life on this planet, according to a recent experiment. Tue, 07 Mar 2023 07:31:58 EST //www.koonmotors.com/releases/2023/03/230307073158.htm //www.koonmotors.com/releases/2023/02/230222141146.htm Astronomers have discovered an unusual planetary system in which a large gas giant planet orbits a small red dwarf star called TOI-5205. Their findings challenge long-held ideas about planet formation. Wed, 22 Feb 2023 14:11:46 EST //www.koonmotors.com/releases/2023/02/230222141146.htm //www.koonmotors.com/releases/2023/02/230214154018.htm Astronomers have long been aware that planetary systems are not necessarily structured like our solar system. Researchers have now shown that there are in fact four types of planetary systems. Tue, 14 Feb 2023 15:40:18 EST //www.koonmotors.com/releases/2023/02/230214154018.htm //www.koonmotors.com/releases/2023/02/230209094205.htm 因为他们发现由NASA的旅行者的使命the 1980s, temporary 'spoke' features across Saturn's rings have fascinated scientists, yet eluded explanation. They have been observed in the years preceding and following the planet's equinox, becoming more prominent as the date approaches. Saturn's upcoming autumnal equinox of the northern hemisphere on May 6, 2025, means that spoke season has come again. NASA's Hubble Space Telescope will be on the job studying the spokes, thanks to time dedicated to Saturn in the mission's ongoing Outer Planet Atmospheres Legacy (OPAL) program. Are the smudgy features related to Saturn's magnetic field and its interaction with the solar wind, as prevailing theory suggests? Confirmation could come in this spoke season, as scientists combine archival data from NASA's Cassini mission with new Hubble observations. Thu, 09 Feb 2023 09:42:05 EST //www.koonmotors.com/releases/2023/02/230209094205.htm //www.koonmotors.com/releases/2023/02/230207144222.htm New research reveals that artificial intelligence can be used to find planets outside of our solar system. The recent study demonstrated that machine learning can be used to find exoplanets, information that could reshape how scientists detect and identify new planets very far from Earth. Tue, 07 Feb 2023 14:42:22 EST //www.koonmotors.com/releases/2023/02/230207144222.htm //www.koonmotors.com/releases/2023/01/230118111758.htm A team reveals the eventful migration history of planets bordering the Hot Neptune Desert, these extrasolar planets that orbit very close to their star. Wed, 18 Jan 2023 11:17:58 EST //www.koonmotors.com/releases/2023/01/230118111758.htm //www.koonmotors.com/releases/2023/01/230113145324.htm Understanding how dust grains form in interstellar gas could offer significant insights to astronomers and help materials scientists develop useful nanoparticles. Fri, 13 Jan 2023 14:53:24 EST //www.koonmotors.com/releases/2023/01/230113145324.htm //www.koonmotors.com/releases/2023/01/230112155833.htm A new theory could explain the origin and properties of systems of rocky super-Earths and their relationship with the terrestrial planets of the solar system. Thu, 12 Jan 2023 15:58:33 EST //www.koonmotors.com/releases/2023/01/230112155833.htm //www.koonmotors.com/releases/2023/01/230111193500.htm NASA's James Webb Space Telescope has imaged the inner workings of a dusty disk surrounding a nearby red dwarf star. These observations represent the first time the previously known disk has been imaged at these infrared wavelengths of light. They also provide clues to the composition of the disk. Wed, 11 Jan 2023 19:35:00 EST //www.koonmotors.com/releases/2023/01/230111193500.htm //www.koonmotors.com/releases/2023/01/230111193458.htm Researchers confirmed an exoplanet, a planet that orbits another star, using NASA's James Webb Space Telescope for the first time. Formally classified as LHS 475 b, the planet is almost exactly the same size as our own, clocking in at 99% of Earth's diameter. Wed, 11 Jan 2023 19:34:58 EST //www.koonmotors.com/releases/2023/01/230111193458.htm //www.koonmotors.com/releases/2023/01/230110151046.htm Using data from NASA's Transiting Exoplanet Survey Satellite, scientists have identified an Earth-size world, called TOI 700 e, orbiting within the habitable zone of its star -- the range of distances where liquid water could occur on a planet's surface. The world is 95% Earth's size and likely rocky. Tue, 10 Jan 2023 15:10:46 EST //www.koonmotors.com/releases/2023/01/230110151046.htm //www.koonmotors.com/releases/2023/01/230110103403.htm The chemistry of planet formation has fascinated researchers for decades because the chemical reservoir in protoplanetary discs -- the dust and gas from which planets form -- directly impacts planet composition and potential for life. Tue, 10 Jan 2023 10:34:03 EST //www.koonmotors.com/releases/2023/01/230110103403.htm //www.koonmotors.com/releases/2022/12/221219094937.htm The condemned planet could help answer questions about the fate of other worlds as their solar systems evolve. Mon, 19 Dec 2022 09:49:37 EST //www.koonmotors.com/releases/2022/12/221219094937.htm //www.koonmotors.com/releases/2022/12/221215120718.htm Astronomers have found evidence that two exoplanets orbiting a red dwarf star are 'water worlds,' planets where water makes up a large fraction of the volume. Thu, 15 Dec 2022 12:07:18 EST //www.koonmotors.com/releases/2022/12/221215120718.htm //www.koonmotors.com/releases/2022/12/221215104624.htm Researchers have discovered the presence of two planets with Earth-like masses in orbit around the star GJ 1002, a red dwarf not far from our solar system. Both planets are in the habitability zone of the star. Thu, 15 Dec 2022 10:46:24 EST //www.koonmotors.com/releases/2022/12/221215104624.htm //www.koonmotors.com/releases/2022/11/221122111346.htm New observations of WASP-39 b reveal a never-before-seen molecule in the atmosphere of a planet -- sulfur dioxide -- among other details. Tue, 22 Nov 2022 11:13:46 EST //www.koonmotors.com/releases/2022/11/221122111346.htm