Experts such as Lewis, who first addressed this topic in his 1997 book Mining the Sky, argue in favor of using the raw ...

NASA selects two proposals for missions to observe X-ray and far-infrared wavelengths of light from space for additional ...

This Hubble Space Telescope image shows LEDA 42160, a galaxy about 52 million light-years from Earth. The dwarf galaxy is one ...

Lightspeed travel is a popular concept in sci-fi and pop culture, but it's not a technology we are likely to see anytime soon ...

There is a region of the sky where astronomers fear to look. Filled with dark clouds of dust, it hides an unseen mass. A mass ...

Roughly 400,000 years after the Big Bang, the universe cooled just enough to allow photons to escape from the primordial ...

In this photo taken on Sept. 16, 1993, NASA astronauts James H. Newman (left), and Carl E. Walz evaluate procedures and gear ...

The Hubble Space Telescope has captured two tangled galaxies, whose interactions have caused knots to form in the ...

Hubble unexpectedly finds double quasar: This image from the NASA/ESA Hubble Space Telescope shows a pair of quasars (known ...

The most luminous kilonova candidate to date (short gamma-ray burst 200522A) was detected using the Hubble Space Telescope, ...

An international team of astronomers has identified three ultra-massive galaxies—each nearly as massive as the Milky ...

Astrophysicists developed a theoretical model that could be used to estimate how likely it is for intelligent life to emerge ...