Vote Now! Top Space Stories of the Week - Sept. 30, 2012

Mars Rover Finds Ancient Streambed Where Water Once Flowed

NASA/JPL-Caltech/MSSS

NASA's Mars rover Curiosity has discovered what appears to be an ancient streambed, suggesting that water once flowed in large volumes — perhaps hip-deep in places — across the Martian surface. [Full Story]
NEXT: Source of Monster Black Hole's Energy Jet Identified

Source of Monster Black Hole's Energy Jet Identified

Avery E. Broderick (University of Waterloo/Perimeter Institute)

A peek at swirling matter around a black hole is now pinpointing the tiny region where monstrous blasts of energy erupt from, researchers say. [Full Story]
NEXT: 'Avengers' in Space: NASA Astronaut Recounts Movie Nights and Life in Orbit

'Avengers' in Space: NASA Astronaut Recounts Movie Nights and Life in Orbit

NASA/Carla Cioffi

Astronaut Joe Acaba is back on Earth after a months-long visit to the International Space Station, and is adjusting to life back on the ground. [Full Story]

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Space.com is the premier source of space exploration, innovation and astronomy news, chronicling (and celebrating) humanity's ongoing expansion across the final frontier. Originally founded in 1999, Space.com is, and always has been, the passion of writers and editors who are space fans and also trained journalists. Our current news team consists of Editor-in-Chief Tariq Malik; Editor Hanneke Weitering, Senior Space Writer Mike Wall; Senior Writer Meghan Bartels; Senior Writer Chelsea Gohd, Senior Writer Tereza Pultarova and Staff Writer Alexander Cox, focusing on e-commerce. Senior Producer Steve Spaleta oversees our space videos, with Diana Whitcroft as our Social Media Editor.