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Asteroids, Comets and Meteors News
June 30, 2023

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Magnetic Bacteria Point the Way

趋磁细菌,可以对齐with the Earth's magnetic field, have been discovered in a new location. Previously observed on land and in shallow water, analysis of a hydrothermal vent has proven that they can also survive deep under the ocean. The bacteria were able to exist in an ...

Detection of an Echo Emitted by Our Galaxy's Black Hole 200 Years Ago

An international team of scientists has discovered that Sagittarius A* (Sgr A*), the supermassive black hole at the centre of the Milky Way, emerged from a long period of dormancy some 200 years ago. The team, led by Frédéric Marin, a CNRS researcher at the Astronomical Strasbourg Observatory ...

Molecular Filament Shielded Young Solar System from Supernova

Isotope ratios found in meteorites suggest that a supernova exploded nearby while the Sun and Solar System were still forming. But the blast wave from a supernova that close could have potentially destroyed the nascent Solar System. New calculations shows that a filament of molecular gas, which is ...

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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Webb Space Telescope Detects Universe's Most Distant Complex Organic Molecules

Researchers have detected complex organic molecules in a galaxy more than 12 billion light-years away from Earth -- the most distant galaxy in which these molecules are now known to exist. Thanks to ...

Supercomputer Simulations Provide a Better Picture of the Sun's Magnetic Field

The new findings challenge the conventional understanding of solar dynamics and could improve predictions of solar weather in the ...

The Search for Habitable Planets Expands

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 ...

Astronomers Discover a Key Planetary System 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. ...

New Study Provides Novel Insights Into the Cosmic Evolution of Amino Acids

All biological amino acids on Earth appear exclusively in their left-handed form, but the reason underlying this observation is elusive. Recently, scientists uncovered new clues about the cosmic ...

A Deep Underground Lab Could Hold Key to Habitability on Mars

Tunnels deep underground in North Yorkshire are providing a unique opportunity to study how humans might be able to live and operate on the Moon or on ...

An X-Ray Look at the Heart of Powerful Quasars

Researchers have observed the X-ray emission of the most luminous quasar seen in the last 9 billion years of cosmic history, known as SMSS J114447.77-430859.3, or J1144 for short. The new perspective ...

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 ...

Astronomers Reveal the Largest Cosmic Explosion Ever Seen

Astronomers have uncovered the largest cosmic explosion ever witnessed. The explosion is more than ten times brighter than any known supernova and three times brighter than the brightest tidal ...

Webb Looks for Fomalhaut's Asteroid Belt and Finds Much More

Astronomers used NASA's James Webb Space Telescope to image the warm dust around a nearby young star, Fomalhaut, in order to study the first asteroid belt ever seen outside of our solar system ...

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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 ...

What Would the Earth Look Like to an Alien Civilization Located Light Years Away?

What would the Earth look like to an alien civilization located light years away? A team of researchers has used crowd-sourced data to simulate radio leakage from mobile towers and predict what an ...

Superflare With Massive, High-Velocity Prominence Eruption

A team of Japanese astronomers used simultaneous ground-based and space-based observations to capture a more complete picture of a superflare on a star. The observed flare started with a very ...

小行星彗星一样的尾巴不是灰尘,所以lar Observatories Reveal

We have known for a while that asteroid 3200 Phaethon acts like a comet. It brightens and forms a tail when it's near the Sun, and it is the source of the annual Geminid meteor shower, even ...

How to Land on a Planet Safely

Researchers develop a model to describe the interaction between a rocket plume and the surface of a planetary body in near-vacuum conditions. The computational framework takes in information about ...

Pioneering Research Sheds New Light on the Origins and Composition of Planet Mars

A new study has uncovered intriguing insights into the liquid core at the centre of Mars, furthering understanding of the planet's formation and ...

Making Better Measurements of the Composition of Galaxies

A study using data from telescopes on Earth and in the sky resolves a problem plaguing astronomers working in the infrared and could help make better observations of the composition of the universe ...

Could This Copycat Black Hole Be a New Type of Star?

It looks like a black hole and bends light like a black hole, but it could actually be a new type of star. Though the mysterious object is a hypothetical mathematical construction, new simulations by ...

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 ...

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