Universe Today 21 Dec 2020, 20:51 UTC In less than four years, NASA will be sending the “first woman and next man” to the Moon as part of the Artemis III mission. This will be the first time that astronauts have landed on the lunar surface since the final mission of the Apollo Program, which was Apollo 17 in 1972. After careful consideration, NASA has announced the names of the 18 astronauts that make up the Artemis Team.
Starts With a Bang! 21 Dec 2020, 15:02 UTC If you only view the Sun's light, you'll miss this elusive info.
EarthSky Blog 21 Dec 2020, 11:14 UTC A severe climate change event on Venus may have transformed an Earth-like climate to the current uninhabitable-to-humans state. We can learn a lot about climate change from Venus, our sister planet. Venus currently has a surface temperature of 840 degrees F (450 degrees C) – the temperature of an oven’s self-cleaning cycle – and an atmosphere dominated by carbon dioxide (96%) with a density 90 times that of Earth’s.
Starts With a Bang! 18 Dec 2020, 15:02 UTC If the multiverse is real, where does all the energy for it come from?
The Guardian 18 Dec 2020, 06:00 UTC Astronomers behind the most extensive search yet for Alien life are investigating an intriguing radio wave emission that appears to have come from the direction of Proxima Centauri, the nearest star to the sun.
Bad Astronomy 17 Dec 2020, 15:16 UTC A series of observations of Neptune by Hubble Space Telescope show that a huge dark storm raging in the giant planet's northern hemisphere was moving south, but then inexplicably took a major U-turn, heading back north. Not only that, but it may have also spawned a baby dark storm in the process. Neptune is what's called an ice giant, basically a gigantic ball of hydrogen and helium gas with loads of methane, ammonia, and other molecules in it (that for historical reasons, planetary scientists refer to as "ices" even if they're gaseous). At nearly four times the diameter of Earth, Neptune is farthest large planet from the Sun, 4.5 billion kilometers away. When Voyager 2 passed by Neptune in 1989, the images it returned surprised scientists; it saw an immense oval dark storm in the planet's southern hemisphere as big as Earth itself! Called the Great Dark Spot, it had measured wind speeds of a staggering 2,100 kph, the fastest wind ever measured in the solar system. The sizes of Earth and Neptune to scale. There's a decent gap there, but not in most exoplanet systems. Credit: NASA / jcpag2012 at wikimedia But, when Hubble looked at Neptune in 1994, ...
Bad Astronomy 16 Dec 2020, 14:00 UTC Here's a happy thought: The Universe may end in a whimper and a bang. A lot of bangs.
ABC 16 Dec 2020, 01:08 UTC Japan's space agency says it has found more than the anticipated amount of soil and gases from a distant asteroid that were brought back to Earth inside a small capsule on the Hayabusa2 spacecraft.