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 […]
The notion of Planet X, a hypothetical massive planet orbiting the Sun beyond the known reaches of the Solar System, has held great appeal for the general public for many decades. The newest results from NASA’s WISE mission, however, indicate that no such planet exists. Image Credit: Warner Bros.
Deeply ingrained in popular […]
Image Credit: NASA/JPL-Caltech
The true identity of centaurs, the small celestial bodies orbiting the Sun between Jupiter and Neptune, is one of the enduring mysteries of astrophysics. Are they asteroids or comets? A new study of observations from NASA’s Wide-field Infrared Survey Explorer (WISE) finds most centaurs are comets.
Image Credit: NASA
WASHINGTON — NASA announced Tuesday a Grand Challenge focused on finding all asteroid threats to human populations and knowing what to do about them.
An asteroid “family” is comprised of fragments of a parent body that was broken up during a collision. Image Credit: NASA / JPL / Caltech
NASA’s Wide-field Infrared Survey Explorer (WISE) has found new members of asteroid families. This was accomplished by reviewing millions of images collected during the asteroid-hunting part of the WISE […]
Asteroid exploration has taken on renewed importance in recent years, with the close passage of 2012 DA14 in February 2013 drawing worldwide public attention. In addition to the proposed NEOCam telescope mission, NASA has announced plans for this Asteroid Retrieval Spacecraft, which may culminate in a mission as early as 2021 to bring a 30-foot-wide asteroid from […]
An asteroid will make a very close approach to Earth on Feb. 15, and NASA is preparing for the encounter. Image Credit: Jeff Darling
An asteroid is barreling toward Earth! But no worries … there’s no need to get Bruce Willis into a space shuttle and have him save us with a nuclear weapon […]
Artist’s impression of an asteroid approaching the Earth. Image Credit: Jeff Darling
Be afraid – but not too afraid. It’s true that at some point, if we don’t take steps to prevent it, a big dumb object is going to smash into the Earth so hard that civilization as we know it will be […]