Astronomers at the National Radio Astronomy Observatory have used a worldwide network of radio telescopes to find the distance to the Pleiades star cluster, also known as the Seven Sisters. The result of their work is a distance to the Pleiades of 443 light-years, accurate, the astronomers said, to within one percent. They say this is the most accurate and precise measurement yet made of the Pleiades’ distance and that is resolves a controversy over the distance to this famous, beloved and important star cluster.
An MIT study finds big snowstorms will still occur in the Northern Hemisphere despite global warming.
This star, 61 Cygni isn’t among the brightest stars. In fact, it takes some effort just to find it, because it is not much brighter than the faintest stars visible to the unaided human eye. It is, however, among the most important of stars visible without optical aid. It has one of the largest proper motions – that is, sideways motions along our line of sight – of any star in our sky. Its large proper motion has given 61 Cygni the nickname Flying Star. Follow the links inside to learn more.
A new report warns of a 70% increase in the number of days with unhealthy summertime ozone levels by the year 2050.
Aerial surveys this week revealed a row of deep cauldrons south of the Bárðarbunga caldera. They are also seeing fractures in glacier ice near the volcano. Bárðarbunga volcano has shown signs for nearly two weeks that an eruption might be imminent, but no eruption yet. An eruption from this sub-glacial volcano could shut down air traffic.
Isn’t this gorgeous? Clouds at sunset over Italy’s Ligurian Sea by Maranatha.it Photography.
Look westward as soon as darkness falls on August 28 to catch the slender waxing crescent moon fairly close the horizon. That bright star close to the moon is Spica, the brightest in the constellation Virgo the Maiden. Don’t delay, though, when looking of the moon and Spica, especially if you live at northerly latitudes, for the twosome will follow the sun beneath the horizon by early evening.
Despite the high interest in it, scientists say it’s not likely a supervolcano will erupt at Yellowstone National Park anytime in the near future. And, if one did, the effects of the eruption would vary depending on the strength of the eruption, wind conditions at the time, and other factors. Still, a Yellowstone supervolcano could cover North America with ash, from sea to sea.
The famous double moon on August 27 hoax has come through like gangbusters this August. No one expected that! This hoax is now 11 years old. Still, clearly, not everyone knows it’s a hoax. Google searches have made this post the most popular on our site for the past week. An email must be circulating – somewhere, social media must be buzzing – with the suggestion that – on August 27, 2014 – Mars will appear as large as a full moon in Earth’s sky. And that is just not true.
A NASA sounding rocket has confirmed that the solar system is inside an ancient supernova remnant. Life on Earth survived despite the nearby blasts.