People always want to know what will happen to Earth when the sun eventually swells up as a red giant. For one thing, the ...

These dark sky sanctuaries, reserves, parks, and trails invite you to immerse yourself in the wonders of our night skies.

In 1987, an enormous blue arc, thought to be hundreds of trillions of miles long, was first considered one of the largest ...

Researchers traced long, bright radio pulses, combined with X-rays, to an intriguing cosmic object 15,000 light-years from ...

This NASA/ESA Hubble Space Telescope image features the remote galaxy HerS 020941.1+001557, which appears as a red arc that ...

Southeastern Utah state and national parks will host the the fourth annual Astrofest in mid-June, highlighting the beauty of ...

Twice per year, New Yorkers and visitors are treated to a phenomenon known as Manhattanhenge, when the setting sun aligns ...

The remote-imaging system (left) shoots eight infrared laser beams (red line added to show the path) at a target (right) in a building 1.36 km away. Light reflecting off the target is collected by the ...

In a Universe that was only 700 million years old, long before Earth even formed, something unexpected happened. A massive ...

A galactic pileup 94 million light-years away is giving astronomers a detailed look at how cosmic collisions shape the universe.

The International Astronomical Union’s Minor Planet Center, which catalogs new moons and other small bodies in the solar ...