"The descent into the underworld is going to test you, but it is also where the treasures are," says author Susan Casey.
NASA's newest Mars rover, Perseverance, will gather valuable data and deploy a drone helicopter called Ingenuity on the red planet.
If you're questioning your heterosexuality and/or interested in dating women for the first time: You've come to the right place.
Rachel Smith studies the birth of stars to better understand the origins of life on Earth, and perhaps elsewhere in the universe.
The blood red falls tumble out of a glacier 100 feet to a lake below.
The Advanced Supersonic Parachute Inflation Research Experiment (ASPIRE) will slow the Mars 2020 rover down from its breakneck pace of 12,000 miles per hour.
Why go outside when you can visit the Moon from your bedroom?
Watch alien planets evaporate and black holes lurk in this motherlode of videos.
Fewer than 50 people visit Quttinirpaaq National Park on Ellesmere Island IRL each year.
The Deep Space Gateway is scheduled to be built in the 2020s.
15-year-old Alia Almansoori got to watch her experiment get launched into space Monday.
Breakthrough Starshot wants to go to Alpha Centauri.