Did Astronomers Find an Evolving Planet?
A Hawaii-based astronomer announced at an October 19, 2011, NASA meeting the discovery of a young-looking planet forming near the star LkCa 15. "You can actually see the planet forming, as the process is happening right now," Adam Kraus, of the University of Hawaii's Institute of Astronomy, told the Associated Press.1 But how does he know that it is forming?
New Study Can't Explain Blue Stragglers' Youth
Blue stragglers, according to NASA, "are older stars that acquire a new lease on life when they collide and merge with other stars."1 But a new study calls into question whether stellar collisions can account for these remarkable stars. And blue stars burn their fuel so quickly that they actually look young.
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