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China Will Land a Rover on Mars: Time and Streaming

China has sent astronauts to space. Its robotic probes have been to the moon and back. On Saturday (it will still be Friday in the United States) it will attempt…

4 Astronauts Float Into the International Space Station and Open Arms

“Endeavour arriving.” With those words, the four members of the SpaceX Crew Dragon Endeavour began floating one by one into the International Space Station on Saturday morning, about 24 hours…

What Doomed the Great City of Cahokia? Not Ecological Hubris, Study Says

That finding is in keeping with our knowledge of Cahokian agriculture, says Jane Mt. Pleasant, professor emeritus of agricultural science at Cornell University who was not involved in the study.…

Biden’s Climate Summit Sets Up a Bigger Test of American Power

Now comes the hard part. President Biden’s summit meeting on climate change ended on Friday with the United States promising to reduce its dependence on fossil fuels and help other…

Astronauts on SpaceX Flight Encounter Space Junk Danger

As the astronauts were getting ready for sleep, there were a few minutes of concern: Mission controllers at SpaceX headquarters in California warned the crew that a piece of space…

Astronauts Launching to Space Are Vaccinated Against Covid-19

Without hospitals or medical specialists in space, NASA and other space agencies have always been concerned about astronauts falling sick during a mission. To minimize the chances of that, they…

Why was the launch delayed one day?

The Crew-2 launch had been set for Thursday morning, and weather at the launchpad was favorable. But mission managers had to also take into account conditions in the Atlantic Ocean…

Live Updates: SpaceX Hours From Launch of Astronauts for NASA

Here’s what you need to know: [embedded content] For the third time, astronauts are set to hitch a ride on a private rocket to space. The launch is scheduled for…

Climate Change Could Cut World Economy by $23 Trillion in 2050

WASHINGTON — Rising temperatures are likely to reduce global wealth significantly by 2050, as crop yields fall, disease spreads and rising seas consume coastal cities, a major insurance company warned…

It’s Dinner Time on the Space Station. Lobster or Beef Bourguignon?

“There are small tricks like this to produce umami that will reveal certain flavors,” he said. Mr. Marx’s dishes were assembled in the cans by hand to offer the visual…