Opportunity continued her walkabout around Marathon Valley in September and sent home more evidence of significant water alteration and, perhaps, an ancient environment inviting enough for the emergence of life.
This is the first in a series of posts in which scientists share favorite planetary science plots. For my #FaveAstroPlot, I explain what you can see when you look at how asteroid orbit eccentricity and inclination vary with distance from the Sun.
NASA announced the first-round selections for its next Discovery mission today. A total of five planetary mission concepts -- three targeted at asteroids, two at Venus -- will move to the next stage of the competition.
Last Friday I posted an image containing 18 samples of terrain, all shown at the same scale. Were you able to figure out which square was which? Here are the answers.
Learn all about a sustainable, affordable path to get humans to the Red Planet—a path that goes through Mars orbit and Phobos.
NASA held a press briefing today to publicize a cool incremental result in the story of present-day liquid water on Mars. How big a deal is this story? Was all the pre-announcement hype justified? Is this just NASA discovering water on Mars for the zillionth time? What does this mean for things many space fans care about: life on Mars or future human exploration?
A look at the surfaces of 18 worlds in our solar system, all at the same scale.
Enlarge this image to its full 8000-pixel-square glory and lose yourself in it.
There will be a spectacular total lunar eclipse on the night of Sept. 27-28, 2015, a newly dubbed Mega Hemorrhaging Eclipse. Here is info on what lunar eclipses are and how to observe the eclipse.
There are no spacecraft at Uranus or Neptune, and there haven't been for 30 and 25 years, respectively. So we depend on Earth-based astronomers to monitor them, including Damian Peach.
Posted by Dante Lauretta on 2015/09/22 09:27 CDT
Historically, NASA missions set aside a portion of their budgets for education and public outreach, or EPO. However, the OSIRIS-REx EPO budget got deleted in 2013 as part of a broader federal policy change. Dante Lauretta decided to make a run at a private company to recover the lost OSIRIS-REx EPO program – and Xtronaut was born!
For less than $50, you can download images from NOAA satellites using your laptop and a small radio antenna.
Impress your friends and wow your colleagues by learning all about Mars's moons.
Since I last checked in with Curiosity, the rover has been steadily driving southward, heading directly toward the Bagnold dune field. They are looking for a place to drill into the Stimson sandstone unit, but have been distracted by intriguing pale haloes around frock fractures. Despite a rough road, the wheels are not showing significant increase in damage.
Today, New Horizons released a stunning new image of Pluto's backlit mountains and hazes. I explain how the image was taken with its Ralph Multispectral Visible Imaging Camera.