But that’s nothing compared with PSR J2322-2650b, an object the mass of Jupiter studied recently by the James Webb Space ...

Not every large object in space forms part of a solar system. There are some big objects that exist in isolation in space, without either being a star or orbiting one. One of these, SIMP 0136, wanders ...

The giant planets weren't always where we find them today. Jupiter, Saturn, Uranus and Neptune formed in a more compact ...

The results come from long-term Hubble observations of how each bright object quickly grew, became oval-shaped, and gradually ...

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

Forbes contributors publish independent expert analyses and insights. Leslie Katz covers the intersection of culture, science and tech. A yellowish-orange glow bathes Phainoterra, a planet of dramatic ...

A possible cousin of Pluto seems to be circling the far reaches of the solar system. The dwarf planet candidate 2017 OF201 travels in a superwide orbit, with the sun relatively near one end of its ...

Two years ago, astronomers believe they detected a star devouring one of its planets. Now, new observations of the aftermath of same event from the James Webb Space Telescope have suggested a scenario ...

A team of astronomers claims to have sniffed out a “biosignature” in the atmosphere of a distant planet called K2-18b. But not everyone agrees that it signals life. An illustration shows what ...

Astronomers have identified a giant planet circling a tiny red dwarf star at a distance so extreme that it sits about 690 times farther from its star than Earth is from the Sun. The discovery pushes ...

Researchers have found a candidate for the hypothetical Planet Nine, which could be an undiscovered giant planet way out in our solar system. However, as with all ninth planet research, the new ...

A rocky planet in the Milky Way galaxy may have an atmosphere, raising the possibility that life could exist on its surface, according to experts. TRAPPIST-1e, a planet belonging to a collection of ...