Stories tagged astronomy

Aug
04
2005

An impressive display of meteors will move across the sky on Friday, August 12, (2005) when the Perseid meteor shower becomes most visible. Peak viewing times will be from 2 a.m. until sunrise that morning, according to NASA experts. Because of interference from urban lights, viewing is best outside of the city. The Perseid meteor shower occurs every summer, when the tail behind Comet Swift-Tuttle intersects with Earth's orbit, causing comet dust to enter Earth's atmosphere. Meteors from the comet travel from the direction of the constellation Perseus, which gives the shower its name.

Mar
04
2005

There is probably no day greeted with greater joy and anticipation than the first day of spring -- especially after a Minnesota winter! Sometimes, the only thing that gets us through February is knowing that better days are on the way. But when, exactly, does spring get here?

TV weathermen will tell you that spring starts on the vernal equinox -- the day when the number of hours of daylight are equal to the number of hours of night. (In 2005, this falls on March 20.) The problem is, the weathermen are wrong.

Feb
08
2005

Even though the Hubble Space Telescope has been one of the most popular NASA missions ever, NASA administrators and President Bush have made the hard decision to let the telescope fail.

What's special about the Hubble Telescope? Clouds and light pollution—the brightening of the night sky by human activities—affect what we can see from Earth. A telescope in outer space doesn't have those limitations.