On a few days each year, sunlight shines all the way down an 825-foot-long corridor at the Massachusetts Institute of Technology, a phenomenon that has been dubbed MIThenge.
On February 12th, the United States celebrates the 200th birthday of the country's 16th president. Discover how celestial events highlighted his life.
The world's most fascinating mapping utility now works on another planet.
What value would you put on a cheap scope like this?
Astronomers have long known that sunspot numbers vary over a cycle that averages about 11 years. But do these cycles influence Earth's climate? And what about the longer term? Could the measured global warming of recent decades be a result of increased solar energy output? Freelance writer Kristina Grifantini explores these issues in the...
For most of its history, the study of extrasolar planets has been rife with false alarms. Because of the claimed big discoveries that later withered away under close scrutiny, astronomers have tended to greet major new developments with a healthy dose of skepticism. Such was the case during the past few years whenever astronomers...
What makes a planet a planet? In 2006 the International Astronomical Union (IAU) adopted a definition of "planet" that from its outset, sparked controversy. The IAU defined a planet to be: A celestial body that (a) is in orbit around the Sun, (b) has sufficient mass for its self-gravity to overcome rigid body forces...
In this, the year celebrating the 200th birthday of Abraham Lincoln, Donald W. Olson and Laurie E. Jasinski summarize several celestial connections to the United States's 16th president in the March 2009 Sky & Telescope. The article notes the famed "alamanc trial" of 1857, the Leonid meteor storm of 1833, a daytime sighting of...
Psst. Microsoft's virtual observatory," the WorldWide Telescope, is coming to your Web browser.
Here's a star-buying scheme we can support.
We're pleased to announce our new store for S&T-themed clothing and products.
Next month, James Bond heads to Chile's Very Large Telescope. That can't be good.
The National Geographic Channel provides an up-close look at the Very Large Telescope.
No matter where you observe from, now you can get an astronomical weather forecast.
The U.S. space agency was founded 50 years ago today. You can celebrate by finding your favorite NASA photograph.
The Astronomical League has announced its best webmaster for 2008.
Astronomers are scanning the sky with a variety of programs that collect gigabytes of data each night — and more are coming. The following links will take you were you can learn more about the current and planned programs: Sloan Digital Sky Survey (SDSS) SkyMapper Catalina Sky Survey (CSS) Spacewatch VLT Survey Telescope (VST)...
PBS will have encore presentations of Timothy Ferris's ode to amateur astronomy.
Next week, NASA will launch its latest space observatory to provide our best look at the most powerful beacons in the universe.
Watch a talk from Neil deGrasse Tyson.
Some ways to get your head around cosmic orders of magnitude.
Software giant Microsoft wants to show you the universe with its WorldWide Telescope.
An interesting use for a computerized mount.
Details of the next total solar eclipses are yours for the mailing.
Celestial audio tours from Celestron are part of the latest Google Sky update.