EVANSTON, Ill. — Except for the fact that we call it home, for centuries astronomers didn’t have any particular reason to believe that our solar system was anything special in the universe. But, ...

An international team of professional and amateur astronomers, using simple off-the-shelf equipment to trawl the skies for planets outside our solar system, has hauled in its first “catch.” The ...

The orbital sampling effect (OSE) appears in phase-folded transit light curves of extrasolar planets with moons. Analytical OSE models have hitherto neglected stellar limb darkening and non-zero ...

Astrometry uses the shift in a star’s position on the sky relative to other stars to infer the existence of orbiting planets. The movement of the extrasolar planet AF Lep b (white spot at about 10 ...

Of the over 200 known extrasolar planets, 14 exhibit transits in front of their parent stars as seen from Earth. Spectroscopic observations of the transiting planets can probe the physical conditions ...

The interstellar object 3I/ATLAS, an extrasolar comet currently traversing our solar system, has recently exhibited a fascinating change in its tail’s direction. Observations by the Nordic Optical ...

The first images of an extrasolar radiation belt were obtained by combining 39 radio telescopes to form a virtual telescope spanning the globe from Hawaii to Germany. (Image credit: Melodie Kao, Amy ...

"Of the other small planets like Earth that are out there, which of them have Jupiter siblings? Because this might be an important characteristic to look for, if we want to figure out where to find ...

Radiation belts are doughnut-shaped magnetic structures enveloping a planet that are filled with extremely high-energy electrons and charged particles. Originally discovered first around Earth in 1958 ...

Since early July, telescopes around the world have been tracking just our third confirmed interstellar visitor, the comet 3I/ATLAS—3I, for third interstellar, and ATLAS (Asteroid Terrestrial-impact ...

We have detected only one transiting planet that has a mass below 10 Earth masses. This world, CoRoT-7b (named after the European Convection, Rotation and planetary Transits satellite) has a radius ...

An international team of astronomers has discovered an exoplanet that could be completely covered in water. An international team of researchers led by Charles Cadieux, a Ph.D. student at the ...