Earth: A “dark brother” of the Moon will accompany for two months
It is an asteroid that will reach the Earth's orbit on Sunday
SpaceX Makes History: First-Ever Spacewalk by Private Astronauts – ‘From Here, It Looks Like a Perfect World’
Watch the Historic Polaris Dawn Mission: Crew Dragon Sets New Record, Reaching the Highest Altitude Since Apollo 17
NASA unfurls giant solar sail that you can see from Earth
Solar sailing eliminates the need for heavy propulsion systems enabling a spacecraft to travel indefinitely