Using the radial velocity (RV) method, an international team of astronomers has discovered two new exoplanets transiting a nearby M-dwarf star known as GJ 1002. The newfound alien worlds have masses similar to that of our ...
Astronomers are keenly interested in red dwarfs and the planets that orbit them. Up to 85% of the stars in the Milky Way could be red dwarfs, and 40% of them might host Earth-like exoplanets in their habitable zones, according ...
Planetary Sciences
Dec 19, 2022
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27
The nearest known exoplanet to Earth, the planet orbiting Proxima Centauri, experiences some pretty nasty space weather from its parent star. But previous work on the space weather of Proxima relied on a lot of assumptions. ...
Astronomy
Dec 19, 2022
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Our understanding of habitability relies entirely on the availability of liquid water. All life on Earth needs it, and there's every indication that life elsewhere needs it, too.
Astrobiology
Dec 15, 2022
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13
Earth is about 29% land and 71% oceans. How significant is that mix for habitability? What does it tell us about exoplanet habitability?
Astrobiology
Nov 25, 2022
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65
When we think about finding life beyond Earth, especially on exoplanets, we immediately want to search for the next Earth, or Earth 2.0. We want an exoplanet that orbits a star firmly in its habitable zone (HZ) with vast ...
Astrobiology
Nov 8, 2022
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20
In a recent study accepted to The Astrophysical Journal Letters, a team of researchers at the University of Nevada, Las Vegas (UNLV) investigated the potential for life on exoplanets orbiting M-dwarf stars, also known as ...
Astrobiology
Oct 31, 2022
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14
Recent exoplanet exploration has focused on the discovery of temperate rocky planets like the Earth, which are often called habitable planets. Most of the recent missions are targeting stars cooler than the sun. Such stars ...
Planetary Sciences
Sep 30, 2022
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726
Of all known planets, Earth is as friendly to life as any planet could possibly be—or is it? If Jupiter's orbit changes, a new study shows Earth could be more hospitable than it is today.
Astronomy
Sep 9, 2022
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463
Water is the one thing all life on Earth needs, and the cycle of rain to river to ocean to rain is an essential part of what keeps our planet's climate stable and hospitable. When scientists talk about where to search for ...
Astronomy
Sep 8, 2022
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