An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

Astronomers have found two planets around two separate stars that are succumbing to their stars' intense heat.

New observational data from the James Webb Space Telescope and simulation models have confirmed a new type of planet unlike ...

High radiation during a time of frenzied star formation in the Milky Way left one stellar population with few chances to form planets, a study reports.

Alignments of five or more planets are rare—there will be two more featuring five or more planets this year, but after that ...

"The rate at which the planet is evaporating is utterly cataclysmic, and we are incredibly lucky to be witnessing the final hours of this dying planet." ...

MORE: How astronomers used gravitational lensing to discover 44 new stars in distant galaxy All four of these planets should ...

The Moon meets the Red Planet’s rival in Scorpius, skims close to Saturn, and reaches New phase in the sky this week.

This celestial event peaks on January 29 and includes Mercury by late February, creating a seven-planet alignment. Stargazers are in for a treat early this new year, as the sky is full of stars ...

HD 101581 is the brightest currently known star which has multiple transiting planets with sizes below 1.5 times the radii of the Earth and, at about 7.77 in V-band magnitude, makes for one of the ...

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