The cold and remote planets originally earned their label of "ice giants" to contrast their interiors from those of Jupiter ...

A rare interstellar visitor stunned observers with an extraordinarily bright emerald glow over Egypt, offering scientists new ...

There are a host of celestial events to get excited about next year – including a total solar eclipse. Abigail Beall is ...

"We reported hints of methane, but the question is, 'is the methane attributable to molecules in the atmosphere of the planet ...

Astronomers using the James Webb Space Telescope have captured dramatic helium streams pouring off the super-puff exoplanet ...

Using the JWST, an international team featuring UNIGE scientists has detected enormous clouds of helium streaming away from ...

Jupiter shines brilliantly in the eastern sky this December as it nears opposition early in 2026, outshining nearby stars and ...

Lurking further from its stars than Neptune is from the Sun, this is no inner planet, but it’s on a scale we recognize, ...

With major eclipses, brilliant supermoons, and lineups of five or more planets, 2026 offers something awe-inspiring in every season. Here’s what to watch for.

The 3I/ATLAS interstellar object, which a number of scientists consider to be potentially technological and likely to pose a ...

More than 50 green meteors might streak across the sky every hour. Find a spot of dark sky, away from city lights, to enjoy the view.

An international team including astronomers from the University of Geneva (UNIGE) and the National Center of Competence in ...