Orbiting its star in an elliptical path at less than half the distance between Earth and the Sun, this exoplanet offers a ...

I n our solar system, Jupiter is the biggest planet at 88,846 miles in equatorial diameter — the distance through the planet from one side to the other at its equator — and a mass of 1,898 × ...

Long theorized but never observed, the first known “planet with a death wish” is described by Ilin and her colleagues in a ...

Astronomers in Poland have discovered a nearby exoplanet more than 11 times the mass of Jupiter, comfortably putting it in the pantheon of the most massive known worlds. The object is a cold super ...

The exoplanet, a planet beyond our solar system, has been dubbed TWA 7b after NASA's James Webb Space Telescope captured ...

With a radius of nearly 1.1 times that of Jupiter and a mass 2.3 times that of the gas giant, this newly discovered exoplanet, designated TOI-4127 b, takes 56.4 days to orbit its host star TOI-4127.

Using gravitational microlensing, scientists have discovered a rare, large planet at the edge of the Milky Way. The planet is ...

One of Jupiter’s most recognizable attributes is its sheer size.With a diameter over 88,800 miles, our solar system’s largest planet is 11 times as wide as Earth and twice as massive as all ...

Scientists think they know the origin of the asteroid that wiped out the dinosaurs German scientists found evidence that the space rock came from the outer limits of our solar system, well beyond ...

NASA artist’s conception of a brown dwarf (main) and stock image of the planets in the solar system (inset). An object between 2 and 50 times the mass of Jupiter may have flown through our ...