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Extrasolar Planets News
September 7, 2021
Top Headlines
 
Spiral galaxy | (c) Alexandr Mitiuc / stock.adobe.com

Cold Planets Exist Throughout Our Galaxy, Even in the Galactic Bulge, Research Suggests

Aug. 30, 2021 — Researchers combined observations and modeling to infer the distribution of cold planets in the Milky Way. The results ...

Unravelling the Mystery of Brown Dwarfs

Aug. 27, 2021 — Brown dwarfs are astronomical objects with masses between those of planets and stars. The question of where exactly the limits of their mass lie remains a matter of debate, especially since their ...
Alien planet ocean | (c) Ryan Rad / stock.adobe.com

New Class of Habitable Exoplanets Represent a Big Step Forward in the Search for Life

Aug. 25, 2021 — A new class of exoplanet very different to our own, but which could support life, has been identified by astronomers, which ...

Ocean World: Rocky Exoplanet Has Just Half the Mass of Venus

Aug. 5, 2021 — A team of astronomers have shed new light on planets around a nearby star, L 98-59, that resemble those in the inner Solar System. Amongst the findings are a planet with half the mass of Venus -- the ...
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Mind the Gap: Scientists Use Stellar Mass to Link Exoplanets to Planet-Forming Disks

June 23, 2021 — Data from 500 young stars observed with the Atacama Large Millimeter/submilliter Array (ALMA) is giving scientists a window back through time, allowing them to predict what exoplanetary systems ...

The Give and Take of Mega-Flares from Stars

June 16, 2021 — The long relationships between stars and the planets around them - including the Sun and the Earth - may be even more complex than previously thought. This is one conclusion of a new study involving ...

Star's Death Will Play a Mean Pinball With Rhythmic Planets

June 11, 2021 — Four planets locked in a perfect rhythm around a nearby star are destined to be pinballed around their solar system when their sun eventually dies, according to a new study that peers into its ...

Scientists Discover New Exoplanet With an Atmosphere Ripe for Study

June 9, 2021 — Scientists have discovered a new, temperate sub-Neptune sized exoplanet with a 24-day orbital period orbiting a nearby M dwarf star. The recent discovery offers exciting research opportunities thanks ...

How Planets Form Controls Elements Essential for Life

May 10, 2021 — How a planet comes together has implications for whether it captures and retains the volatile elements, including nitrogen, carbon and water, that eventually give rise to life, according to ...

Geology Helps Astronomers Find Habitable Planets

May 4, 2021 — Astronomers have identified more than 4,000, and counting, confirmed exoplanets -- planets orbiting stars other than the sun -- but only a fraction have the potential to sustain life. Now, new ...

Hubble Watches How a Giant Planet Grows

Apr. 29, 2021 — NASA's Hubble Space Telescope is giving astronomers a rare look at a Jupiter-sized, still-forming planet that is feeding off material surrounding a young ...

Astronomers Detect Hydroxyl Molecule Signature in an Exoplanet Atmosphere

Apr. 27, 2021 — Astronomers have detected a new chemical signature in the atmosphere of an extrasolar planet (a planet that orbits a star other than our Sun). The hydroxyl radical (OH) was found on the dayside of ...

Using Exoplanets as Dark Matter Detectors

Apr. 22, 2021 — In the continuing search for dark matter in our universe, scientists believe they have found a unique and powerful detector: exoplanets. Astrophysicists suggest dark matter could be detected by ...

Enormous Flare from Sun's Nearest Neighbor Breaks Records

Apr. 21, 2021 — On May 1, 2019, researchers observed a record-setting flare from the star Proxima Centauri -- a burst of energy roughly 100 times more powerful than any similar event seen from Earth's ...

A New Super-Earth Detected Orbiting a Red Dwarf Star

Apr. 16, 2021 — Researchers report the discovery of a super-Earth orbiting the star GJ 740, a red dwarf star situated some 36 light years from ...

Baked Meteorites Yield Clues to Planetary Atmospheres

Apr. 15, 2021 — In a novel laboratory investigation of the initial atmospheres of Earth-like rocky planets, researchers heated pristine meteorite samples in a high-temperature furnace and analyzed the gases ...

First Transiting Exoplanet's 'Chemical Fingerprint' Reveals Its Distant Birthplace

Apr. 7, 2021 — Astronomers have found evidence that the first exoplanet that was identified transiting its star could have migrated to a close orbit with its star from its original birthplace further ...

From Stardust to Pale Blue Dot: Carbon's Interstellar Journey to Earth

Apr. 2, 2021 — We are made of stardust, the saying goes, and a pair of studies finds that may be more true than we previously ...

There Might Be Many Planets With Water-Rich Atmospheres

Mar. 15, 2021 — A new study suggests that hot, rocky exoplanets could not only develop atmospheres full of water vapor, but keep them for long ...

How the Habitability of Exoplanets Is Influenced by Their Rocks

Mar. 11, 2021 — The weathering of silicate rocks plays an important role to keep the climate on Earth clement. Scientists investigated the general principles of this process. Their results could influence how we ...

Distant Planet May Be on Its Second Atmosphere

Mar. 11, 2021 — Scientists have found evidence that a planet orbiting a distant star may have lost its atmosphere but gained a second one through volcanic ...

A Giant, Sizzling Planet May Be Orbiting the Star Vega

Mar. 8, 2021 — Vega, one of the brightest stars in the night sky, may play host to a giant planet with average surface temperatures of 5,390 degrees ...

Comet Catalina Suggests Comets Delivered Carbon to Rocky Planets

Mar. 5, 2021 — Comet Catalina is helping explain more about our own origins as it becomes apparent that comets like Catalina could have been an essential source of carbon on planets like Earth and Mars during the ...

Earth Has a Hot New Neighbor -- And It's an Astronomer's Dream

Mar. 4, 2021 — A rocky planet discovered in the Virgo constellation could change how we look for life in the ...
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