"We are only beginning to discover the true complexity of these worlds." ...

JUICE and the Hubble Space Telescope turned their gazes towards the interstellar visitor in November.

New images taken by the Hubble Space Telescope and a Jupiter-bound mission showcase interstellar comet 3I/ATLAS ahead of its ...

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

They also discovered a brown dwarf orbiting hundreds of light years away from Earth.

Jupiter is already the biggest planet by far in our solar system, but new research suggests it was somehow once even larger than it is now. Twice as large, in fact. To put that into context, those ...

Analysis of early direct images from James Webb telescope show immense dust clouds on brown dwarf that lead to a blurring of ...

The waning moon shines close to the king of the planets on Dec. 7.

Jupiter, the largest planet in the solar system, was 2 to 2.5 times bigger in its earlier life, according to new research. Jupiter, the largest planet orbiting the sun, used to be much bigger and ...

Astronomers believe the Star of Bethlehem or "Christmas Star" could have been Jupiter, Venus, or Mars—or possibly a combination of the three—as each of the planets are near their peak brightness for ...

The comet is the third object ever confirmed to have entered our cosmic neighborhood from elsewhere in the galaxy. Space ...