Images of Saturn's auroras as the planet's magnetic field is battered by charged particles from the Sun have led a team to claim decisive evidence for the hypothesis that Saturn's auroral displays…

Elon Musk's ideas are in the news right now, rockets with first stages that fly back to a soft landing under auto pilot. But you might be surprised to learn how many other ideas there are under…

Last year, people began wondering why part of the sun was missing.  What had happened was that changes to the magnetic field were allowing hot plasma to fly off into space toward Earth, creating…

The astronomer Giovanni Schiaparelli first described them as 'canali' in the 19th century. A conspicuous net-like system of deep gorges known as the Noctis Labyrinthus is clearly visible on Mars'…

One of the most fascinating nearby planetary systems, 55 Cancri, is now less mysterious. Hopefully. The authors say theirs is the first viable model for  the planetary system of 55…

A newly discovered "hypervelocity star" is the closest, second-brightest and among the largest found so far. It is speeding at more than 1 million mph and may provide clues about the supermassive…

Astronomers have made a measurement of a distant neutron star that is one million times more precise than the previous world's best - and they did it by using...nothing. The interstellar medium is…

One of the most powerful events in our universe – Gamma-Ray Bursts (GRB) – behave differently than previously thought, and this evidence from observation of a GRB rules out most of the existing…

Astronomers have taken unprecedented images of the intergalactic medium (IGM) — the diffuse gas that connects galaxies throughout the universe — with the Cosmic Web Imager, which was designed and…

A team of researchers led by Robert Quimby at the Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU) has announced the discovery of a galaxy that magnified a background,…