Astronomer Phil Plait has put together some fun facts about our planet in honor of today’s Earth Day, such as, “What does the Earth have that no other planet we know of has? A lot of water on the surface - nearly a third of the planet.”
SpaceX Launch: Next Attempt Is Today; Watch It Live
“SpaceX, a private space company, is planning again today tolaunch its Dragon spacecraftto the International Space Station. Its first attempt to launch this mission was scratched on Monday because of a helium leak.
The live webcast begins at 11:45 PST and the launch itself is scheduled for 12:25, though SpaceX notes that the weather isn’t ideal.”
The crash, which occurred between 12:30 a.m. and 1:22 a.m. Eastern time, brought to a successful end a six-month, $280 million mission to study the tenuous envelope of gases and dust surrounding the moon.”