This graphic depicts the orbit of comet C/2013 A1 Siding Spring as it swings around the Sun in 2014. On Oct. 19, 2014, the comet will have a very close pass at Mars. Its nucleus will miss Mars by about 82,000 miles (132,000 kilometers). Credit: NASA/JPL-Caltech
Earth’s invasion fleet at Mars is about to [...]
Composite Chandra image of four supernovae: the Crab Nebula, Tycho, G292.0+1.8, and 3C58. Image Credit: NASA/CXC/SAO
The Chandra X-Ray Observatory, NASA’s space telescope which observes the universe using X-rays, has now completed its 15th year of operations, and astronomers are celebrating the anniversary with a series of special images from the orbiting observatory.
ESA’s Rosetta spacecraft, which is presently en route to the comet 67P/Churyumov–Gerasimenko, has detected that the comet’s nucleus outgasses huge amounts of water vapor each second, despite its current distance of approximately 3.7 Astronomical Units from the Sun. Image Credit: ESA
Being part of a natural thermoregulation process for all mammals, perspiration is the [...]
The discovery images of 2012 VP113. Three images of the night sky, each taken about two hours apart, were combined into one. The first image was artificially colored red, the second green, and the third blue. 2012 VP113 moved between each image as seen by the red, green, and blue dots. The background stars [...]
VIDEO: Comet ISON moves ever closer to the Sun in this movie from the ESA/NASA Solar and Heliospheric Observatory, captured in the early hours of Nov. 27, 2013. A coronal mass ejection explodes off the Sun; it is unlikely to damage ISON even if they cross paths. Image Credit/Caption: ESA/NASA/SOHO
This artist’s concept illustrates the fate of two different planets: the one on the left is similar to Earth, made up largely of silicate-based rocks with oceans coating its surface. The one on the right is rich in carbon — and dry. Chances are low that life as we know it, which requires liquid [...]
An artist’s concept of the Deep Impact spacecraft flying past a comet. Image Credit: NASA/JPL/UMD/Pat Rawlings
Nine years ago NASA launched a spacecraft to do something that had never been done at any point in recorded history: to visit a comet and punch a hole in its face to investigate the surface and interior composition [...]
The Deep Impact spacecraft, depicted here in flight, is feared lost after a period of no communication since Aug. 8. Image Credit: NASA/JPL-Caltech.
NASA announced Tuesday, Sept. 10 that ground controllers have lost contact with its flagship comet-hunting probe Deep Impact, which is part of the Discovery Program managed at Marshall Space Flight Center [...]