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Could astronauts visit the Hubble Space Telescope again?
Astronauts repaired and upgraded NASA's Hubble Space Telescope over the course of five servicing missions from 1993 to 2009. Could yet another astronaut visit be in the cards?
Rocket launch today: Is there a rocket launch and what time?
Follow Space.com's rocket launch blog for the latest on when the next rocket launch will be and how to follow it live.
Climate change is officially the leading threat to imperiled species in the United States
For the first time, scientists have identified climate change as the top driver of human-caused biodiversity loss among species protected under the Endangered Species Act.
On this day in space! April 24, 1970: China launches its 1st satellite
On April 24, 1970, China became the fifth nation to independently launch a satellite into orbit.
World's largest solar telescope gains powerful new 'eye' to study the sun's secrets
A powerful new instrument added to the Daniel K. Inouye Solar Telescope promises to maximize the information gleaned from the sun's light.
Happy 35th birthday, Hubble Telescope! 10 times the iconic observatory blew astronomers' minds (photos)
To mark the 35th anniversary of the Hubble Space Telescope, Space.com looks at some of the most scientifically significant images that have emerged from the observatory's lens.
China launches Shenzhou 20 astronauts to Tiangong space station (video)
China's latest human spaceflight mission is headed for orbit early Thursday morning (April 24), and you can watch the action live.
Night sky for tonight: Visible planets, stars and more in this evening's sky
Find out what you can see in the night sky for tonight, from planets and stars to dazzling meteor showers.
