Artist's Rendition of the Life Stages of Sun-Like Stars Annotations in the illustration show the ages of the sun, plus two solar twins astronomers have studied.
Sometimes it's kind of fun to look at a friend's older relatives, to guess how he'll age. In a new study, astronomers have done something like that by examining an 8.2 billion-year-old star for clues as to what our own 4.6 billion-year-old sun will be like in the future.
Open Star Cluster NGC 3766
Astronomers have discovered a new type of pulsing star. There are 36 of the new type, located in a cluster about 7,000 light-years away from Earth.
Karin Lind, Davide De Martin
A team of scientists working at the Keck Observatory in Hawaii has solved one of the vital inconsistencies in the Big Bang theory, reconciling observed data with our current theoretical models of how the birth of the universe went down 13.8 billion years ago. The discovery was published in the June 6 edition of Astronomy and Astrophysics.
Alpha Centauri B An Earth-mass planet has been spotted orbiting Alpha Centauri B, the closest star system to our own.
Remember last week when PopSci told you about a "people's choice" contest to name the planet orbiting the Alpha Centauri star system? And the International Astronomical Union had cried foul, saying the paid contest had no bearing on the names? Well, it's not really that simple. You can call a star or a planet whatever you want, and even pay to nominate your favorite; it just might not matter to anyone else.
Four star system A family portrait of the PH1 planetary system that was discovered in part due to crowdsourcing
Haven Giguere/Yale via Universe Today
Maybe it's because Jurassic Park is in theaters again, but we at Universe Today sometimes worry about how one person can mess up an otherwise technologically amazing system. It took just one nefarious employee to shut down the dinosaur park's security fences in the movie and cause havoc. How do we ensure science can fight against that, especially when everyday citizens are getting more and more involved in the scientific process?
Small And Large The M100 galaxy, which is about 60 percent larger than the Milky Way, next to the M97 galaxy.
From "Galaxy Size Comparison Chart" by Rhys Taylor
Think the Milky Way is big? It's puny compared to M87, an elliptical galaxy 980,000 light years in diameter. The Milky Way is only 100,000 light years in diameter. Let's not even get into Hercules A, which is 1.5 million light years across.