Science News Roundup: Study explains how primordial life survived on 'Snowball Earth'; SpaceX Starship rocket test could happen next week - FAA and more

Following is a summary of current science news briefs.

Study explains how primordial life survived on 'Snowball Earth'

Life on our planet faced a stern test during the Cryogenian Period that lasted from 720 million to 635 million years ago when Earth twice was frozen over with runaway glaciation and looked from space like a shimmering white snowball. Life somehow managed to survive during this time called "Snowball Earth," and a new study offers a deeper understanding as to why.

SpaceX Starship rocket test could happen next week - FAA

A key SpaceX Starship Super Heavy rocket launch test could happen next week, according to a planning notice posted Tuesday by the Federal Aviation Administration (FAA). The FAA notice said the launch's primary expected date is April 10, but listed backup dates as April 11 and 12. Billionaire Elon Musk's SpaceX rocket and satellite company must still get a launch license for what is expected to be its first orbital flight test from Boca Chica, Texas.

NASA names woman, Black astronauts to Artemis II crew in lunar first

NASA on Monday named the first woman and the first African American ever assigned as astronauts to a lunar mission, introducing them as part of the four-member team chosen to fly on what would be the first crewed voyage around the moon in more than 50 years. Christina Koch, 44, an engineer who already holds the record for longest continuous spaceflight by a woman and was part of NASA's first three all-female spacewalks, was named as a mission specialist for the Artemis II lunar flyby expected as early as next year.