Haunting Images from NASA of a Space Suit Drifting in Orbit

You might want to file this under “nightmare fuel.”  Yes this is a thing that actually happened on the International Space Station in 2006. But if you’re not already familiar with what’s going on here, it’s probably not what you think…

After 15 Years NASA and DLR Prepare to Say Goodbye to GRACE

On March 17, 2002, a pair of satellites nicknamed “Tom” and “Jerry” launched aboard a Russian Rockot vehicle from the Plesetsk Cosmodrome in Russia. It was the start of the Gravity Recovery and Climate Experiment, aka GRACE, a partnership mission between NASA and the German space agency (DLR) to map Earth’s gravity field and how it…

Cassini Uncovers Even More Evidence for Enceladus’ Hidden Ocean

It’s been suspected for nearly a decade that Saturn’s 315-mile-wide moon Enceladus harbors a hidden ocean beneath its frozen crust, thanks to observations by the Cassini spacecraft of icy plumes spraying from its southern pole, and now scientists have even more evidence supporting its existence: Doppler measurements of the moon’s gravity taken during Cassini’s flybys show variations…

A Visual Demonstration of Gravity, Courtesy of Cassini

Prometheus is at it again! On Feb. 5, Cassini acquired a series of images with its narrow-angle camera of Saturn’s reflective and ropy F ring, around the inside of which travels the shepherd moon Prometheus. As it orbits Saturn it regularly arcs outwards toward the inner edge of the F ring and tumbles back inwards…

No, this isn’t a shot from the film “Gravity” (but it could be)

I could say “how have I never heard of this!?” but the truth is I wasn’t blogging about space in February 2006 when this image was taken. Still, it’s no less incredible to watch! But if you’re not already familiar with this, it may not be exactly what you think…

Titan’s Misty Mountains May Have “Roots As Nobody Sees”

It’s been thought for some time that Saturn’s largest moon Titan has a complex internal structure consisting of multiple layers of ice and liquid water. At one point it was even suggested that there are water ice “cryovolcanoes” on Titan, where watery slush oozes to the surface and freezes solid in the moon’s 270-degree-below temperatures,…

One Very Attractive Simulation

Here’s a fascinating physics model by computer artist Mark J. Stock, showing the 3-dimensional movements of 1 million bodies, each given their own gravity: One can easily imagine witnessing the birth of galaxies after the Big Bang, millions — even billions — of years passing before your eyes in seconds! It’s amazing how quickly a…