Smithsonian Magazine23h
Venus, the Planet of Love, Will Shine Bright on Valentine’s Day. Here’s How to See It
Around the time of your romantic dinner, head outside and look to the southwest to spot the super brilliant planet in the night sky ...
Spacefarers may contaminate other worlds – but scientists have plans to keep the cosmos clean
The US wants to put a flag on Mars. But there’s a risk it could carry unwanted stowaways that might compromise future ...