Every year, we get new outlooks on the upcoming hurricane season in the Atlantic. These outlooks aren’t perfect, but there’s methodology and thought that goes into them, and they are informative. Meanwhile, we never hear of an official tornado or severe weather outlook for the United States. Here’s why it would be tricky to create one.
What happens to the information that goes into a black hole? Is it irretrievably lost? Does it gradually or suddenly leak out? Is it stored somehow? Physicists have puzzled over this question for decades, since Stephen Hawing showed that black holes gradually evaporate from the universe, taking their information with them. A new study by University of Buffalo physicists, however, shows that information going into a black hole is not lost at all.
April 3, 1837. John Burroughs – born on today’s date in 1837 – was one of the first naturalists who focused on communicating his love of nature through the written word. You might think you haven’t heard of Burroughs, but you’ve probably heard of some of the things he said. For example:
I go to nature to be soothed and healed, and to have my senses put in order.
He was one of the first to say in print:
If you think you can do it, you can.
And he said:
To me – old age is always ten years older than I am.
With the onset of spring in the Northern Hemisphere, animals that hibernate are waking up from a long-period of deep sleep. They spent the winter hibernating to conserve energy when food was scarce.
The brightness of this unusual nova has gone up and down and now back up again. EarthSky friend Tom Wildoner tells you how to see the nova before it’s gone!
March 27, 1964. On this date, at 5:36 p.m. local time, a 9.2 magnitude earthquake struck in the Prince William Sound region of Alaska, causing extensive initial damage and a subsequent tsunami. In Anchorage, dozens of blocks of buildings were leveled or damaged. Valdez, closest to the epicenter, was destroyed. The quake is now known as the Good Friday Earthquake.
Emily Lakdawalla of the Planetary Society created this image after last week’s Lunar and Planetary Science Conference in Houston. At the conference, scientists announced names for various regions (quads) on Ceres, and Lakdawalla applied those names to a digital elevation model of the little world, resulting in the image above.
Is there an actual harmony of the spheres? A chance discovery by a team of researchers has provided experimental evidence that stars might generate sound. They announced their discovery March 23, 2015.
The Southern Hemisphere has had two Great Comets recently – McNaught in 2007 and Lovejoy in 2011. But what about the Northern Hemisphere? Our last widely seen Comet was Hale-Bopp in 1996-97. Comet West in 1976 was probably our last Great Comet. When will we see our next Great Comet?
The National Snow & Ice Data Center announced last week that 2014-2015’s Arctic sea ice maximum extent was the lowest yet recorded. In addition, sea ice likely hit its maximum nearly two weeks earlier than in recent decades, on February 25, 2015. It happened even as unusually cold air and stormy weather occurred across the eastern half of the United States and Canada this year.