Our Best Ever Look at Pan, Saturn’s Little “UFO”

Behold the almighty Pan! Thanks to Cassini’s ring-grazing orbits we’ve just received the highest-resolution images ever of Pan—which, at only about 17 miles (27 km) across admittedly isn’t very “almighty” but its flying saucer-like shape is really quite fascinating! The raw images above were acquired by Cassini on March 7, 2017 and received on Earth on…

Juno Will Not Enter Tighter Orbits Around Jupiter, Team Decides

NASA’s Juno spacecraft will remain in 53-day-long orbits of Jupiter rather than rocket down to smaller 14-day orbits, despite the mission’s original plan to do so. Announced today, Feb. 17, this decision comes after evaluation of issues with helium valves that prevented orbital reduction burns in October and December of 2016. “During a thorough review, we looked at multiple scenarios that…

NASA’s Surprising Discoveries About Three Near-Earth Asteroids

Every few days or so I like to check the “Close Approaches” page of JPL’s Near-Earth Object Program, just to see what sorts of cosmic objects are whizzing by our planet; how big they are, when they’ll come, and how far they’ll (hopefully!) miss us by. Most of them are relatively small asteroids several dozen…

Will Worlds Collide?

According to a June 10 article in New Scientist, studies on the variable nature of planetary orbits have shown some valid possibilities of collisions in the future. (The very distant future, luckily for us.) Due to the nature of Jupiter’s massive gravitational pull on the inner planets, especially Mercury, their orbits are susceptible to incredible…