Why Perseverance’s first Mars drilling check got here up empty

Enlarge (credit score: NASA) Final week, NASA’s Perseverance rover shot for a brand new milestone within the seek for extraterrestrial life: drilling into Mars to extract a plug of rock,… Read more

Final yr reusable rockets entered the mainstream, and there’s no going again

On December 13, 2020, a Falcon 9 rocket launched the Sirius XM-7 mission. It was the seventh flight for this primary stage. [credit: Trevor Mahlmann ] The notion of reusing… Read more