Our solar system collectively hosts nearly 200 known moons, some of which are vibrant worlds in their own right. Take a tour of the major moons in our celestial menagerie, including those that are among the most mystifying—or scientifically intriguing—places in our local neighborhood.

This page is beautiful with animations and the like, but not very convenient to read (have to love scrolling a lot...)

Visite virtuelle de la station spatiale internationale en mode "street view", avec des photos de Thomas Pesquet.

You are here ==> .


More about this photo : https://photojournal.jpl.nasa.gov/catalog/PIA00452

(via : https://links.neros.fr/?hcBW0Q)

(via : https://twitter.com/coreyspowell/status/832312705352613888)

It has been 50 years since the Apollo 1 fire killed Roger Chaffee at Cape Kennedy’s Launch Complex 34 in Florida. Chaffee, along with astronauts Virgil “Gus” Grissom and Ed White II, died on Jan. 27, 1967, when a blaze erupted in their command module during preflight testing.

NASA has 35 kilograms of plutonium-238 to power its deep-space missions — but that will not get it very far.

A list of questions sorted by topics (space travel, cosmics rays, black holes, ...) answered by the NASA.

On the same topic, visit http://spaceflight.nasa.gov/feedback/expert/index.html where astronauts and mission control people answer questions about their job.