Was There a Large Ocean on Mars?

New data from ESA’s Mars Express reveals strong evidence that an ocean once covered the northern hemisphere of Mars. The evidence is based on signatures of ocean floor sediments in an area within the boundaries of what has thought to […]

Stellar Mass Black Hole Consumes Neighboring Star

Recent observations made by NASA’s Chandra X-ray Observatory have recorded the fastest wind from a disk surrounding a stellar-mass black hole. The speed of these intense winds is estimated at around 3% of the speed of light (30,000,000 km/hr) – […]