A team led by UdeM astronomers has found evidence that two exoplanets orbiting a red dwarf star are "water worlds," planets where water makes up a large fraction of the volume. These worlds, located in a planetary system ...
Astronomy
Dec 15, 2022
0
844
Ultra-short-period planets are small, compact worlds that whip around their stars at close range, completing an orbit—and a single, scorching year—in less than 24 hours. How these planets came to be in such extreme configurations ...
Astronomy
Dec 2, 2021
3
495
Scientists have spotted the largest flare ever recorded from the sun's nearest neighbor, the star Proxima Centauri.
Astronomy
Apr 21, 2021
20
11423
A team of transatlantic scientists, using reanalyzed data from NASA's Kepler space telescope, has discovered an Earth-size exoplanet orbiting in its star's habitable zone, the area around a star where a rocky planet could ...
Astronomy
Apr 15, 2020
9
4749
When NASA's James Webb Space Telescope launches in 2021, one of its most anticipated contributions to astronomy will be the study of exoplanets—planets orbiting distant stars. Among the most pressing questions in exoplanet ...
Astronomy
Dec 3, 2019
3
861
Astronomers have discovered a planet in orbit around one of the closest stars to the Sun, Barnard's star.
Astronomy
Nov 14, 2018
25
1497
A team working with ESO's High Accuracy Radial velocity Planet Searcher (HARPS) at the La Silla Observatory in Chile has found that the red dwarf star Ross 128 is orbited by a low-mass exoplanet every 9.9 days. This Earth-sized ...
Astronomy
Nov 15, 2017
36
880
The newly discovered super-Earth LHS 1140b orbits in the habitable zone around a faint red dwarf star named LHS 1140, in the constellation of Cetus (The Sea Monster). Red dwarfs are much smaller and cooler than the Sun and, ...
Astronomy
Apr 19, 2017
5
489
Astronomers have found a system of seven Earth-sized planets just 40 light-years away. They were detected as they passed in front of their parent star, the dwarf star TRAPPIST-1. Three of them lie in the habitable zone and ...
Astronomy
Feb 22, 2017
19
4722
The search for life beyond Earth starts in habitable zones, the regions around stars where conditions could potentially allow liquid water – which is essential for life as we know it – to pool on a planet's surface. New ...
Astronomy
Feb 8, 2017
5
635
