Sunday marks the start of an alignment between Earth’s closest planetary neighbors, Mercury, Venus, Jupiter, Saturn, Uranus and Neptune, which will form a parade across the Southern Utah skies for ...

Three out of seven Earth-sized planets in the TRAPPIST-1 system are likely without an atmosphere, ruling them out as ...

The exoplanet TRAPPIST-1 d intrigues astronomers looking for possibly habitable worlds beyond our solar system because it is ...

One such planet, known as exoplanet TRAPPIST-1 d, has intrigued astronomers looking for possibly habitable worlds beyond our ...

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Using the James Webb Space Telescope (JWST), astronomers have observed a young brown dwarf known as Cha Hα 1. As a result, ...

Is there a massive undiscovered planet on the outer reaches of the solar system? The idea has been around since before the ...

In Roman mythology, Pluto is the god and ruler of the dead. For a return mission to the dwarf planet, Howett and her ...

Planet could be a gas giant, orbiting 1 to 2 times the distance between Sun and Earth. The Alpha Centauri system, our nearest stellar neighbor, has long captured the imagination of science fiction and ...

Astronomers using the NASA/ESA/CSA James Webb Space Telescope have found strong evidence of a giant planet orbiting a star in ...

Astronomers using NASA’s James Webb Space Telescope may have spotted a gas giant planet orbiting Alpha Centauri A.

Astronomers have found the strongest evidence yet of a giant planet in the "habitable zone" orbiting a star in the nearest solar system to our own Sun. The discovery was made using NASA's James Webb ...