资讯

From Newton’s falling apple to Einstein’s curved spacetime, our understanding of gravity has come a long way, yet this ...
Life on the International Space Station isn't always easy. There's not a lot of room, no showers, and no laundry. Photos show ...
A line composed of countless points is two-dimensional, possessing all the properties of one-dimensional space while ...
Hubble’s latest portrait of Messier 96 captures a galaxy twisted by cosmic interactions. The new details reveal brilliant star-forming regions glowing in its outer edges. Credit: ESA/Hubble & NASA, F.
Cartoonist Zach Weinersmith and his wife Kelly, a parasitologist, publish 'A City on Mars', where they mock Elon Musk's ...
Because the Earth is doing the work of increasing the Moon's momentum, the Earth's rotation slows down in turn, as its momentum goes to the Moon. To put it another way, as the Moon's orbital momentum ...
Early scientific theories—such as those explaining basic phenomena like gravity, burning, and the movement of molecules in ...
(Related reading: The impacts that gave us the Moon may explain why Earth has life today) ...
Learn why the Moon moving away from Earth affects tides and Earth's rotation. Discover this fascinating lunar phenomenon and ...
In 2016 billionaire Yuri Milner hosted a press conference at One World Observatory, the atrium topping the slick skyscraper ...
The idea was that high-powered lasers would propel tiny probes to 20 percent of the speed of light, impelling them with ...
Would you rather have a playoff spot basically nailed down with nine games left to play, or would you rather take a chance ...