Citizen Scientist Topics
Breathtaking Saturn
2002 — April 6, 2011
On Dec. 17, 2002, Earth and Saturn will have their closest encounter in nearly 30 years.
Venus Pillars and Dogs
2002 — April 6, 2011
If you look at Venus this month and something doesn't seem quite right, you may have spotted a rare Venus pillar ... or better yet, a Venusdog!
Reed Rafts to Rockets
2002 — April 6, 2011
High school students are following in the wake of great explorers as they launch extraordinary rockets toward a new frontier.
Meteorsfrom the Twilight Zone
2002 — April 6, 2011
The Geminid meteor shower, which peaks this year on Saturday morning, Dec. 14th, has begun. These Meteorscome from a curious object--a "Twilight Zone" cross between a comet and an asteroid--called 3220 Phaethon.
Space StationSupernova
2002 — April 6, 2011
Next week, sky watchers in many US cities can see the Space Stationmaterialize in the morning sky just before sunrise.
Horseflies and Meteors
2002 — April 6, 2011
Like bugs streaking down the side window of a moving car, colorful Perseid Earthgrazers could put on a remarkable show before midnight on August 12th and 13th.
Big Moonshine
2002 — April 6, 2011
Not all full Moons are alike. This week's will be the brightest of 2002 -- but will anyone notice?
Shuttle Sightings
2005 — April 6, 2011
Sky watchers, be alert: the Space ShuttleDiscovery and the International Space Stationare going to fly in tandem over parts of the United States this weekend.
Thanksgiving Skies
2005 — April 6, 2011
There are some things you can only see from the window of an airplane.
Shadows of Venus
2005 — April 6, 2011
The planet Venus is growing so bright, it's actually casting shadows. You may be able to see them this week.