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Extrasolar Planets News
July 12, 2023

Top Headlines

Life After Death: Astronomers Find a Planet That Shouldn't Exist

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 ...

ALMA Digs Deeper Into the Mystery of Planet Formation

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 ...

A Surprise Chemical Find by ALMA May Help Detect and Confirm Protoplanets

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 ...

Earth Was Created Much Faster Than We Thought: This Makes the Chance of Finding Other Habitable Planets in the Universe More Likely

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 ...
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天文学家发现一个关键的行星系统tem to Understand the Formation Mechanism of the Mysterious 'Super-Earths'

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. ...

NASA's Spitzer, TESS Find Potentially Volcano-Covered Earth-Size World

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 ...

Astronomers Observe the First Radiation Belt Seen Outside of Our Solar System

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 ...

Researchers Measure the Light Emitted by a Sub-Neptune Planet's Atmosphere

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 ...

Hubble Follows Shadow Play Around Planet-Forming Disk

The young star TW Hydrae is playing 'shadow puppets' with scientists observing it with NASA's Hubble Space Telescope. In 2017, astronomers reported discovering a shadow sweeping across ...

Astronomers Spot a Star Swallowing a Planet

Scientists have observed a star swallowing a planet for the first time. Earth will meet a similar fate in 5 billion ...

Webb Finds Water Vapor, but from a Rocky Planet or Its Star?

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 ...

Researchers Use AI to Discover New Planet Outside Solar System

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 ...

Metal-Poor Stars Are More Life-Friendly

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 ...

Playing Hide and Seek With Planets

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 ...

New Exoplanet Discovered

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 ...

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How Did Earth Get Its Water?

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 ...

Do Earth-Like Exoplanets Have Magnetic Fields? Far-Off Radio Signal Is Promising Sign

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 ...

Molecules Precursors to Life Discovered in the Perseus Cloud

A study has detected the presence of large quantities of complex organic molecules in one of the nearest star forming regions to the solar ...

JWST Confirms Giant Planet Atmospheres Vary Widely

天文学家已经发现了大气成分s of giant planets out in the galaxy do not fit our own solar system ...

Temperature of a Rocky Exoplanet Measured

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 ...

Searching for Life With Space Dust

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 ...

Hunting Venus 2.0: Scientists Sharpen Their Sights

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 ...

'Terminator Zones' on Distant Planets Could Harbor Life

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 ...

The Planet That Could End Life on Earth

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 ...

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