See a cloud passing our Milky Way’s central black hole

Join astronomers in examining the fate of G2, which has survived its encounter with the supermassive black hole at the heart of the Milky Way.

This image shows an Einstein Ring

The ring is caused by a near-perfect alignment of two galaxies with respect to Earth. One galaxy is 'lensing' the other galaxy's light.

Life’s building blocks in infant star system

"From a life in the universe point of view, this is great news,” said a researcher.

Auroras over US and similar latitudes

A geomagnetic storm sparked a display of auroras on the night of April 9-10. Auroras sighted as far south as Colorado! The storm may intensify later today.

NASA scientist: We’ll find signs of alien life by 2025

"We know where to look. We know how to look," said NASA chief scientist Ellen Stofan.

20 RR Lyrae stars with companions

Previously, only one RR Lyrae star - of many thousands known - was found to orbit in a double star system. Now astronomers have upped the tally by 2000%!

Update on Dawn spacecraft at Ceres

When will we see new images of the mysterious bright spots on Ceres' surface?

Scientists report seasonal changes on sun

Migrating bands of magnetic fields on the sun produce 2-year variations in solar activity as strong as those in the more familiar 11-year solar cycle.

Black holes don’t erase information

Since 1975, when Hawking showed that black holes evaporate from our universe, physicists have tried to explain what happens to a black hole's information.

Hubble spies enigmatic quasar ghosts

Astronomers use the Hubble Space Telescope to examine 8 ethereal wisps orbiting distant galaxies, illuminated by blasts of radiation from quasars.