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Futuristic space concrete uses astronauts’ blood
Scientists in the U.K. have developed a kind of "space concrete" using dust and human blood that could be used for future human habitats on Mars or the moon.
September 23, 2021
Bible story of Sodom revisited. Was it a meteor strike?
The Bible story of Sodom and Gomorrah describes ancient cities destroyed for their wickedness. New research suggests a meteor impact instead.
September 22, 2021
2021’s Harvest Moon: Favorite photos
Photos of 2021's Harvest Moon from the EarthSky Community. Our thanks to all who contributed! Check out community page for more.
September 21, 2021
Asteroid 2021 SG came from the sun’s direction
Asteroid 2021 SG - 4 times the diameter of 2013's Chelyabinsk meteor - passed near Earth without being previously detected on September 16, 2021.
September 20, 2021
U.S. and China: Cooperation or competition in space?
Between the U.S. and China: Will it be collaboration or competition that defines international space science and exploration in the 21st century?
September 19, 2021
What is time, and why does it move forward?
What is time, and why does it move forward? Cosmologist Thomas Kitching of University College London explains how the arrow of time points to the future.
September 19, 2021
Planets are born in cosmic organic soups
Astronomers have found that planets form in cosmic soups of organic molecules. These soups have different ingredients, leading to a wide diversity of planets.
September 18, 2021
Sex in space: Time to talk about it?
Sex in space has been a taboo subject for decades. But, these authors point out, it'll be necessary for the survival of the human race.
September 17, 2021
Inspiration4: 1st all-civilian crew goes to space
SpaceX made history again on September 15, 2021, as it successfully launched Inspiration4, "the world’s first all-civilian mission."
September 16, 2021
SpaceX lasers define next era of Starlink technology
SpaceX lasers launched this week with a new batch of Starlink satellites marks a transition in tech for the satellite broadband network.
September 15, 2021
