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Extrasolar Planets News -- ScienceDaily
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Extrasolar Planets News
March 20, 2020
Top Headlines
 
ALMA radio antennas at night (stock image). | Credit: (c) Christian / stock.adobe.com

The Strange Orbits of 'Tatooine' Planetary Disks

Mar. 19, 2020 — Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have found striking orbital geometries in protoplanetary disks around binary stars. While disks ... read more
Very Large Telescope in Chile (stock image). | Credit: (c) Christian / stock.adobe.com

Exoplanet Where It Rains Iron Discovered

Mar. 11, 2020 — Researchers have observed an extreme planet where they suspect it rains iron. The ultra-hot giant exoplanet has a day side where temperatures climb above 2400 degrees ... read more

Astronomy Student Discovers 17 New Planets, Including Earth-Sized World

Feb. 28, 2020 — An astronomy student has discovered 17 new planets, including a potentially habitable, Earth-sized world, by combing through data gathered by NASA's Kepler ... read more
Exoplanet illustration (stock image; elements furnished by NASA). | Credit: (c) Инна Архипова / stock.adobe.com

Large Exoplanet Could Have the Right Conditions for Life

Feb. 26, 2020 — Astronomers have found an exoplanet more than twice the size of Earth to be potentially habitable, opening the search for life to planets significantly larger than Earth but ... read more
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Distant Giant Planets Form Differently Than 'Failed Stars'

Feb. 10, 2020 — Astronomers have probed the formation process of giant exoplanets and brown dwarfs by using a combination of direct imaging of these objects and custom software to model their ... read more

'Cold Neptune' and Two Temperate Super-Earths Found Orbiting Nearby Stars

Jan. 14, 2020 — A 'cold Neptune' and two potentially habitable worlds are part of a cache of five newly discovered exoplanets and eight exoplanet candidates found orbiting nearby red dwarf stars. The two ... read more

How the Solar System Got Its 'Great Divide,' and Why It Matters for Life on Earth

Jan. 13, 2020 — Scientists have finally scaled the solar system's equivalent of the Rocky Mountain ... read more

Planet WASP-12b Is on a Death Spiral, Say Scientists

Jan. 8, 2020 — Astrophysicists have shown that exoplanet WASP-12b, located 600 light-years away, is spiraling in toward certain destruction in about 3 million ... read more

NASA's TESS Mission Uncovers Its First World With Two Stars

Jan. 7, 2020 — NASA's Transiting Exoplanet Survey Satellite has found its first circumbinary planet, a world orbiting two stars. Called TOI 1338 b, the planet lies 1,300 light-years away and is 6.9 times ... read more

NASA Planet Hunter Finds Earth-Size Habitable-Zone World

Jan. 6, 2020 — NASA's Transiting Exoplanet Survey Satellite (TESS) has discovered its first Earth-size planet in its star's habitable zone, the range of distances where conditions may be just right to ... read more

Scientists Develop New Method to Detect Oxygen on Exoplanets

Jan. 6, 2020 — Scientists have developed a new method for detecting oxygen in exoplanet atmospheres that may accelerate the search for life. The new technique detects the signal that oxygen molecules produce when ... read more

Massive Gas Disk Raises Questions About Planet Formation Theory

Dec. 23, 2019 — Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) found a young star surrounded by an astonishing mass of gas. The star, called 49 Ceti, is 40 million years old and ... read more

Exoplanets Can Be Made Less Habitable by Stars' Flares

Dec. 15, 2019 — Astronomers found that not all exoplanets in habitable zones will be able to maintain hospitable conditions for life. Exoplanets in close proximity to stars are subject to radiation bursts which can ... read more

Planet-Mass Objects in Extragalactic Systems

Dec. 12, 2019 — A research group is reporting the detection of extragalactic planet-mass objects in a second and third galaxy beyond the Milky Way after the first detection in 2018. With the existing observational ... read more

Water Common -- Yet Scarce -- In Exoplanets

Dec. 11, 2019 — The most extensive survey of atmospheric chemical compositions of exoplanets to date has revealed trends that challenge current theories of planet formation and has implications for the search for ... read more

Signs of Life: New Field Guide Aids Astronomers' Search

Dec. 4, 2019 — A senior has come up with a way to discern life on exoplanets loitering in other cosmic neighborhoods: a spectral field ... read more

Hidden Giant Planet Revealed Around Tiny White Dwarf Star

Dec. 4, 2019 — The first evidence of a giant planet orbiting a dead white dwarf star has been found in the form of a disc of gas formed from its evaporating ... read more

Gas Giant Composition Not Determined by Host Star

Dec. 3, 2019 — A surprising analysis of the composition of gas giant exoplanets and their host stars shows that there isn't a strong correlation between their compositions when it comes to elements heavier ... read more

Bizarre Worlds Orbiting a Black Hole?

Nov. 25, 2019 — Theoreticians in two different fields defied the common knowledge that planets orbit stars like the Sun. They proposed the possibility of thousands of planets around a supermassive black ... read more

NASA's TESS Helps Astronomers Study Red-Giant Stars, Examine a Too-Close Planet

Nov. 19, 2019 — Astronomers have been studying two red-giant stars -- older, 'retired' stars no longer burning hydrogen in their cores. The study details an interesting case of planetary evolution and ... read more

'Are We Alone?' Study Refines Which Exoplanets Are Potentially Habitable

Nov. 14, 2019 — Researchers are first to combine 3D climate modeling with atmospheric chemistry to explore the habitability of planets around M dwarf stars, which comprise about 70% of the total galactic ... read more

Distant Worlds Under Many Suns

Nov. 13, 2019 — An astrophysicist has discovered many new multiple star systems that contain exoplanets. For this, he searched more than 1,300 exoplanet host stars. He found that 15 per cent of those stars have at ... read more

Views of Giant Planet in Wild Orbit Would Be Unparalleled

Nov. 5, 2019 — Contrary to previous thought, a gigantic planet in wild orbit does not preclude the presence of an Earth-like planet in the same solar system -- or life on that planet. What's more, the view ... read more

Worldwide Observations Confirm Nearby 'Lensing' Exoplanet

Nov. 1, 2019 — Researchers using telescopes around the world confirmed and characterized an exoplanet orbiting a nearby star through a rare phenomenon known as gravitational microlensing. The exoplanet has a mass ... read more
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