[ad_1]
As NASA prepares for the final flight of the Space Shuttle program, astronaut Jeff Hoffman looks back on its 30 year history.
[ad_2]
Last Chance To Fly The Space Shuttle
Related Posts
Skye fossils reveal secrets of first mammals to walk the Earth
[ad_1] Maija Karala The small furry Jurassic mammal scampered at the feet of dinosaurs (artist impression) Two incredibly rare fossils found on Scotland’s Isle of Skye are rewriting our understanding…
BBC World Service – Discovery, The Evidence: Salt
[ad_1] You eat it every day, but how much do you know about the incredible science of salt? Show more For eons, salt has been crucial to human health, culture,…
