That forfeiture, driven by the intense ultraviolet radiation streaming from the young parent star, offered those planets the chance to develop a more hospitable atmosphere later in their lives (either from gases later emitted from the planet itself or gained via the impacts of comets and asteroids), the researchers note. (sciencemag.org)
I wanted to do a course in something mathematical connected with space and was interested in comets and asteroids.» (sciencemag.org)
Okay, I posted yesterday about the team that's working to protect earth from comets and asteroid impacts. (blog.bulletproof.com)