Meteors, meteoroids, meteorites, and fireballs — keep all these look-alike terms straight.
Observations made by professional and amateur astronomers during the upcoming, once-in-a-generation eclipse of Epsilon Aurigae may reveal whether or not the star is heading for extinction.
In recent years astronomers have found that the more massive a galaxy's central black hole, the more massive the galaxy's central bulge of stars seems to be. Now it turns out that for some galaxies, this isn't true. Is there a better way to judge the mass of a galaxy's black hole just by looking?
Don't miss February's total lunar eclipse (the last one anywhere until late 2010) and look ahead to a total solar eclipse in exotic settings in August.
With minimal moonlight to interfere, the best meteor showers of 2008 should be the Quadrantids, the Aquarids, and the Perseids.
Eclipses, occultations, conjunctions, and meteor showers there's no shortage of celestial action in 2008.
The University of Toronto has announced that the David Dunlap Observatory, situated north of Toronto, Ontario, and the home of Canada's largest optical telescope, is to be closed and sold.
When a star or planet ducks behind the Moon, it's a dramatic celestial sight. This month many lucky viewers will have the chance to see either a planet (Venus) or a bright star (Regulus) play peekaboo.
By using an observing method that mimics human depth perception, astronomers have found a potential dark-matter object.
Scientists have found a new way to detect harmful radiation explosions from the Sun.
Using the infrared Spitzer Space Telescope, astronomers have found thousands of previously unknown dwarf galaxies.
Stars more massive than the Sun have planets too. But they don't fit the familiar pattern.
One of the most dramatic sights in the nighttime sky occurs when the Moon briefly hides a planet or star an event called an occultation. On April 25th and 26th, many observers in northwestern North America will be treated to an unusual occultation double-header as the Moon conceals Saturn on one morning and Regulus…
Until recently, the wonders of Iceland went largely unnoticed. Today, this small North Atlantic island is blossoming into a destination noted for its wealth of natural beauty — explosive geysers, gurgling mud pools, snakelike lava flows, majestic waterfalls, towering glaciers, steaming thermal baths, and magnificent northern lights. On November 1, 2002, thirty travelers journeyed to…
It's going to be an active year for stargazers. Here's where you can find some of the highlights of 2006, including a list of upcoming lunar occultations.
Here are the dates and estimated hourly rates of some of the better showers in 2005 and 2006.
Read about the history and source of the Quadrantid meteor stream, which provides one of the most intense annual meteor displays. Its brief, sharp maximum lasts only a few hours in early January.
Eclipses, conjunctions, and occultations will keep observers worldwide busy during the upcoming year. Here's a summary of what's in store.
The southwestern corner of Australia catches three occultations of Jupiter during the first three months of 2005.
Eclipses, occultations, comets, and a transit of Venus it’s going to be an exciting year for observers.
Clear skies throughout much of the Americas and parts of Europe and Africa allowed millions of people to enjoy a beautiful lunar eclipse during the evening of Nov. 89, 2003.
This is a fairly good year for observing the annual Orionid meteor shower, whose maximum generally lasts from around October 20th to 26th.
An unusually bright supernova has gone off in NGC 2403, an 8.5-magnitude galaxy in the constellation Camelopardalis, the Giraffe.
For the first time since 1882, Venus will glide across the face of the Sun. Here's where you'll be able to watch this rare event on June 8, 2004.
A new, 40°-long, diffuse blue feature is currently visible at the interface between Jupiter's South Equatorial Belt and the Equatorial Zone.