Search results for Planetary Systems

Astrobiology Jul 15, 2026

Astronomers find nearby planets to be small, strange, and utterly uninhabitable

Scientists have painted the most detailed portrait yet of the planetary system orbiting Barnard's Star—the sun's closest neighbor after Alpha Centauri, just under six light-years from Earth.

Planetary Sciences Jul 15, 2026

Asteroid breakup may explain inner solar system bombardment 800 million years ago

A Southwest Research Institute-led study has proposed a connection between a specific collision in the main asteroid belt and an inner-solar-system-wide bombardment episode that may have had measurable biological and geological ...

Earth Sciences Jul 14, 2026

Ocean acidification emerging as a planetary signal linking today's carbon emissions to Earth's deep-time memory

When most people hear the phrase "ocean acidification," they think of coral reefs, shellfish or declining fisheries. Those concerns are real. But while working on our recent research, I found myself asking a different question: ...

Astronomy Jul 2, 2026

Comet from another star has a composition unlike anything else in our solar system

Astronomers have revealed new details about the makeup and age of a visiting comet that was born around a distant star. They conclude that the composition of 3I/Atlas is strikingly different from any object found in our solar ...

Astronomy Jul 1, 2026

TESS just found a planet in a new way—and more may be hiding in its eight years of data

For the first time, NASA's TESS (Transiting Exoplanet Survey Satellite) mission has identified a planet orbiting a distant star thanks to its warping of space-time. Unlike the star-hugging transiting planets TESS regularly ...

Astronomy Jun 28, 2026

12 billion years old, this interstellar comet is older than our solar system

One year ago, on July 1, 2025, astronomers discovered a fascinating new object moving through the solar system. Detected by the Asteroid Terrestrial-impact Last Alert System (ATLAS), the object was quickly recognized as something ...

Astronomy Jun 21, 2026

Well-known planetary nebula's ear-like lobes rewrite its evolutionary timeline

Using the Multi Unit Spectroscopic Explorer (MUSE) and the Manchester Echelle Spectrograph (MES), astronomers from Turkey and Mexico have investigated a planetary nebula discovered two centuries ago, known as NGC 6563. Results ...

Astronomy Jun 16, 2026

Young disk around WRAY 15-1880 may contain a primitive planetary system

Italian astronomers have used the Very Large Telescope (VLT) to perform polarimetric observations of the star WRAY 15-1880 and its young circumstellar disk. Results of the new observations, presented June 10 on the arXiv ...

Astronomy Jun 5, 2026

Did this star eat its planets? A new study offers clues on 'chemical paradox' of a binary system

Astronomers have investigated a puzzling binary star system in which two stars that may have formed together now show dramatically different chemical compositions. The new study, uploaded to the arXiv preprint server on May ...

Planetary Sciences May 28, 2026

Red dwarf stars detected 'eating' Earth-like planets

Astronomers have found some of the strongest evidence yet that stars can swallow their own planets. A new study, published in Monthly Notices of the Royal Astronomical Society, supports the long-held belief that young stars ...

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