The two exoplanets, or planets outside of our solar system, orbit a star called TOI-1453, which is slightly cooler and ...

So in some sense, alien worlds were not first discovered in the 1990s or even the 1980s. It took nearly a century to fully ...

"As the large and bright discs are the easiest to observe, our previous view of the birth site of planets was biased." ...

Long before astronomers discovered the first exoplanet in 1992, the idea of worlds orbiting distant stars captivated the ...

A type Ia supernova occurs when a white dwarf — the cooling remnant of an aging star — draws hydrogen from a companion sun. When the dwarf reaches 1.4 times the mass of the Sun, the star ...

TOI-1453: Sub-Neptune in System of Two Exoplanets Mar. 14, 2025 — Astronomers have discovered two exoplanets around TOI-1453, a star about 250 light years away. These two exoplanets, a super ...

To sort planetary systems into groups, the team examined both the sizes of exoplanets and their period ratios — the number of days a given planet takes to orbit its star divided by the number of ...

The research, accepted for publication in Astronomy & Astrophysics, establishes an important link between observed protoplanetary disks and exoplanets. In the past decade, astronomers have imaged ...

The gas has been observed directly by the James Webb Space Telescope on four exoplanets, all belonging to the HR 8799 system, located 130 light-years from Earth. The detection of CO 2 offers clues ...

They also noticed something odd about Neptune’s auroras. Unlike on other planets, in which the auroras are confined to the northern and southern poles, Neptune’s auroral activity takes place ...