The CEO of Sierra Nevada Corp's space spinoff, Sierra Space, has left the company, with billionaire chairman Fatih Ozmen filling in as interim CEO, the company said in a statement on Monday.

SpaceX is set to launch another rocket from our Space Coast on Monday. The company is aiming for an early afternoon liftoff ...

"Even if a planet is in the habitable zone, if it has too small a water inventory, it transitions to an uninhabitable state." ...

Critics describe Elon Musk’s guiding philosophy of longtermism as primed to justify “atrocities.” Why Elon Musk’s Demand for ...

Some stargazers are calling it a planetary parade: Every other planet in our solar system can be seen in the sky tonight.

With Musk's new relationship to the White House, scientists predict a new 'Kennedy moment' is on the horizon - and Britain, ...

How about that eclipse in 2024? Certainly, the Great North American Eclipse of April 8th 2024 was one for the ages, instilling the eclipse-chasing bug in many a new skywatching fan.

December 1968 was a difficult time for many in the world, as war and hostages, riots and assassinations drew our attention.

Venus will pass to the north of the much-fainter bluish star Regulus (in Leo, the Lion) on the morning of Sept. 19; the planet and star will appear low in the east-northeast predawn sky, separated by ...

It seems 2025 will have a strong start, too, with a planet parade just a few weeks into the new year. A planet parade is when several of our solar system's planets are visible in the night sky at ...

Critical to the Artemis moon program, SpaceX also is building a variant of its Starship rocket to carry astronauts back to the lunar surface in 2027. It will be NASA's first such landing since the ...