Peekaboo Sun: SDO’s Eclipse Season
Now you see it, now you don't! Around the solstices, the Solar Dynamics Observatory ends up having an “eclipse season,”…
A River Ran Through It: Why Do They Think There Was Once Water on Mars?
Why is everyone so excited about these dusty Mars rocks? This week's big news was the announcement of evidence for…
Weekly Space Hangout – Sept. 27, 2012
This was an action-packed episode of the Weekly Space Hangout. Lots of stories, very little time. Super Comet or Super…
Astrophoto: The Crescent Nebula & Wolf Rayet Star by John Chumack
NGC6888 The Crescent Nebula & Wolf Rayet Star (WR136). Credit: John Chumack. Here's an impressive shot of NGC 6888, also…
Parallax Effect Charted in the 2012 Transit of Venus
Combined images taken simultaneously (06 June 2012, 03:46:18 UTC) from Svalbard and Canberra, showing the Venus parallax effect from 2…
Vesta’s Deep Grooves Could Be “Stretch Marks” From Impact
Dawn image of Vesta showing its nearly circumferential equatorial grooves (NASA/JPL-Caltech/UCLA/MPS/DLR/IDA) Even though NASA's Dawn spacecraft has departed Vesta the…
Curiosity Finds Evidence of An Ancient Streambed on Mars
NASA's Curiosity rover found evidence for an ancient, flowing stream on Mars at a few sites, including the rock outcrop…
Amateur Astronomer Creates Detailed Map of Ganymede
The original observations (top) and interpretations (bottom) of the first ever amateur albedo map of Ganymede. Credit: Manos Kardasis. As…
Planets in our Solar System May Have Formed in Fits and Starts
Solar shockwaves would have produced proto-planetary rings at different times, meaning the planets did not form simultaneously (artist concept). Credit:…
Paddleboat Mission to Titan Proposed
Three concepts for the TALISE boat mission to Titan: screw propelled (left), paddle wheels (center) and inflatable wheels (right). Credit:…