Just to remind you that things are still indeed going “boom” in our Solar System, here is a cluster of fresh craters on Mars created by an impact that occurred sometime between 2008 and 2014.
The craters are a result of a meteorite that broke apart during entry, striking the surface as fragments within a localized area. The largest crater’s ejecta field spans about 100 meters across.
It’s kinda like Mars’ way of saying “how’s that space program coming along?”
Saturn’s 250-mile-wide icy moon Mimas shines in direct sunlight and reflected light from Saturn in this image, a composite of raw images acquired by NASA’s Cassini spacecraft on Jan. 30, 2017 and received on Earth today, Feb. 1. This is a bit of a “Frankenstein” job I made, assembled from five separate narrow-angle camera images taken in various wavelengths so the proportions are slightly off here and there, but the general placement of surface features are about right and the lighting is accurate to the scene. Mimas’ south pole is within the deeply shadowed area at the bottom; north is up.
Powerful solar storms can charge up the soil in frigid, permanently shadowed regions near the lunar poles, and may possibly produce “sparks” that could vaporize and melt the soil—perhaps as much as meteoroid impacts, according to new NASA-funded research.
Read the rest of this article from NASA here: Solar Storms Could Spark Lunar Soil
What a difference half a century makes! This week marks 50 years since the Soviet Luna 9 spacecraft made humanity’s first-ever soft landing on the surface of the Moon. Launched from Baikonur on Jan. 31, 1966, the Luna 9 lander touched down within Oceanus Procellarum at 18:44:52 UTC on Feb. 3. Over the following three days Luna 9 sent us our first views of the Moon’s surface from the surface and, perhaps even more importantly, confirmed to scientists that a landing by spacecraft was indeed possible (which, by the way, was achieved on this day in 1971 by Al Shepard and Ed Mitchell with Apollo 14.)
On Nov. 11, 2015, NASA’s Cassini spacecraft passed relatively closely by Saturn’s moon Tethys, one of the ringed planet’s larger icy satellites. The animation above was made from 29 raw images acquired with Cassini’s narrow-angle camera as it passed by; you can see part of the incredibly cratered and ancient surface of this 662 mile (1,065 km) wide moon. Talk about flyover country!
This is Pluto, imaged by New Horizons’ LORRI camera on July 12. It’s (once again) the best view yet, captured from a distance of 2.5 million km / 1.5 million miles. Check out all that geology – craters, depressions, chaos terrain of some sort… at no time in human history has anyone ever seen this world in such detail.* And tomorrow, the spacecraft will pass within a scant 7,767 miles of its surface at 7:49 a.m. EDT / 11:49 UTC, its high-resolution Ralph camera firing away.
So… WHO’S EXCITED??
NASA and JHUAPL will be hosting media broadcasts tomorrow morning starting at 7:30 a.m. EDT during the flyby events (although “live” footage won’t be possible due to the fact that the spacecraft is four and a half hours of light-travel time away.) See the schedule here, and of course you can always tune in to watch NASA TV with the link in the header bar above.
*Although artist Don Dixon pretty much nailed Pluto’s appearance in some illustrations he made in 1979 – check those out here.