This Is Your MOM’s Mars
“Astronomers have found the oldest star in the Universe. Well, kinda. It’s the oldest one we know of. At least the oldest one we know of for which an age has been reliably measured.”
Read more from Phil Plait at Bad Astronomy.
“A few days ago, the Harvard-Smithsonian Center for Astrophysics decided to once again tackle the question of “what is a planet?” It hosted a debate among three leading experts in planetary science, each of whom presented their case as to what a planet is or isn’t. The goal: to find a definition that the eager public audience could agree on.”
Read more from io9.
“A total solar eclipse is one of nature’s greatest spectacles so it is no wonder that many people will go to extreme lengths just to experience one. Down on the ground the period of totality, when the Moon completely blocks the Sun, lasts for just a few minutes. Bad weather can completely wreck your chances of seeing it. This is where a plane can come in handy: you can fly above the clouds and chase the Moon’s shadow as it races across the Earth.”
See more photos as io9.
“Skywatchers, you’re in for a treat. Tonight’s “supermoon” is a pretty special one.
When the moon turns full on Monday, Sept. 8 at 9:38 p.m. EDT, it not only will become the last supermoon of the summer, but also this year’s Harvest Moon — which is a full moon that occurs closest to the autumnal equinox.”