The leading explanation for all of these mysteries is known as the giant impact hypothesis. According to this story, when the ...

Astronomers have examined infant planets orbiting a star 370 light-years away, seeing the exomoon forming disks of gas and ...

Researchers can see celestial snapshots with the James Webb Space Telescope, the most powerful ever launched, of the star ...

The Earth had recently formed (4,600 million years ago) when it was struck by a large protoplanet, sometimes dubbed Theia, roughly three times the mass of Mars. | Credit: MARK GARLICK/SCIENCE ...

This is particularly puzzling, as a vast majority of meteorites can be traced to some well-known parent body—whether that be ...

Researchers are still not sure how old the moon is. However, there is now growing evidence that it is almost as old as our ...

More information: Laird M. Close et al, Three Years of High-contrast Imaging of the PDS 70 b and c Exoplanets at Hα with MagAO-X: Evidence of Strong Protoplanet Hα Variability and ...

Three Years of High-contrast Imaging of the PDS 70 b and c Exoplanets at Hα with MagAO-X: Evidence of Strong Protoplanet Hα Variability and Circumplanetary Dust ...

However, not all of those celestial bodies survived, and a new analysis of a the meteorite NWA 15915 shows that it likely originated from a world that was similar to Mercury in its composition—but not ...