High above northern Philippines, a rare cloud formation transformed mountain peaks into a flowing cascade on 19. The striking ...

A distant world with carbon in its atmosphere and extraordinarily high temperatures is unlike any other planet we’ve seen, ...

Ryan True-Richardson took this photo in the Valley of a large lenticular cloud that formed in the late afternoon ...

It is a rare occurrence indeed for a theory to be turned upside down by the cold accuracy of observation, until the Hubble ...

In an unprecedented celestial event, NASA's Hubble Space Telescope (HST) captured the dramatic aftermath of colliding space ...

A conflict-driven reroute of international ships exposed how dramatically cleaner fuel reduces cloud formation.

The distant planet appears to be in the shape of a lemon as the pulsar's intense gravity stretches the planet.

Astronomers have discovered a bizarre carbon-rich planet orbiting a neutron star, PSR J2322-2650b, with soot clouds and ...

The results come from long-term Hubble observations of how each bright object quickly grew, became oval-shaped, and gradually ...

The colliding objects are at least 37 miles across — at least four times larger than the object that collided with Earth 66 ...

Astronomers said planet PSR J2322-2650b appears to have an exotic helium-and-carbon-dominated atmosphere unlike any ever seen ...

This phenomenon has never occurred before in the northern region of Saudi Arabia. Local residents consider this phenomenon a ...