The Large Synoptic Survey Telescope, seen in this artist's rendering, will be built on the peak of the Cerro Pachon mountain in Chile and will survey every patch of the night sky. The data the telescope will collect will allow researchers to "answer fundamentally different questions about the universe," says one astronomer.
Credit LSST Corporation
The telescope's unique, compact design allows it to swivel very quickly to different parts of the sky. This gives astronomers the ability to capture images quickly.
Every 10 years, about two dozen of this country's top astronomers and astrophysicists get together under the auspices of the National Research Council and make a wish list. The list has on it the new telescopes these astronomers would most like to see built. At the last gathering, they said, in essence, "We most want the Large Synoptic Survey Telescope."
Here's why. A synoptic survey is a comprehensive map of every square inch of the night sky. The Large Synoptic Survey — LSST — will do that multiple times.
If you've ever had a painful sinus infection, all you want is relief — fast!
So off to the doctor you go, and, as often as not, you get a prescription for an antibiotic.
Three days later, you start to feel a little better. "Thank goodness for amoxicillin!" you might say. Well, probably not quite like that, unless you're a nerdy health blogger, but you'd be saying something nice about getting a prescription from your doctor.
An Egyptian soldier on an armored vehicle guards an exchange office in Cairo on Monday. Tensions between the U.S. and Egypt are rising over Cairo's investigation of aid workers, many of them American. An Egyptian Cabinet minister, Faiza Aboul Naga, recently accused the U.S. of directly funding pro-democracy groups in order to create chaos in Egypt.
Moscow's city center at dawn. Some Russians are upset that President Dmitry Medvedev put the country on daylight saving time year-round, which means it doesn't get light until 9 a.m. or later in winter.
If you live in the Northeast, this has been a wacky winter: It has been deathly cold in Eastern Europe, as flowers bloom in New York City and temperatures rise to the high 40s and even 50s.
I went in search of flowers in bloom and was not disappointed. There were bushes of red camellias, and gorgeous yellow flowering Adonis. Kristin Schleiter is the acting director of outdoor gardens at the New York Botanical Garden. She took me to an outdoor test garden.
Aw Muhammad, a resident of a refugee camp in western Kabul, pulls back a shade as one of his six surviving children looks out on the snow. Afghanistan is suffering one of its harshest winters in many years.
Kabul's fourth snowstorm in the past month brought children out to play across the city, including those in the Charahi Qambar refugee camp in the western part of the capital.
Many of the children in the camp don't remember any other life outside of this mud-brick shantytown. Most of their parents fled the southern province of Helmand when the war heated up there four years ago.