WASP-121b is a gas giant extrasolar planet that rotates eerily close to its host star and has two helium tails. This happens ...

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

Sky This Week is brought to you in part by Celestron. Friday, December 12Ganymede reappears from occultation behind Jupiter ...

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

I/ATLAS comet is the 3rd-ever object discovered that originated from outside our solar system. It's not a threat, approaches Earth in December 2025.

In a discovery that's fit for a movie, Northwestern University astronomers have directly imaged a Tatooine-like exoplanet, orbiting two suns. While obtaining an image of a planet beyond our solar ...

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, ...

The exoplanet, discovered by Northwestern University astronomers, orbits two suns exactly like Luke Skywalker's fictional ...

The James Webb Space Telescope finds WASP-121b leaking two long helium tails, offering new insight into atmospheric escape on hot Jupiter exoplanets ...

Discovered on July 1 by the NASA-funded ATLAS telescope in Chile, 3I/ATLAS is only the third confirmed visitor from another ...

Astronomers have used the James Webb Space Telescope (JWST) to discover that a distant "hot Jupiter" planet has two ...