On August 8, 2007, variable-star observer Hiroshi Abe discovered a 9th-magnitude nova in Vulpecula. The AAVSO seeks your observations.
Astronomers using a battery of ground- and space-based telescopes have stumbled upon the most massive galaxy smashup ever seen.
A spirited bidding war is now under way for two precious artifacts: a prototype 13-mm Nagler eyepiece and Steve O'Meara's Tele Vue Genesis refractor.
New images from the Hubble Space Telescope show parts of the Veil Nebula in Cygnus in unprecedented detail.
A widely read columnist thinks that a reader's question about all the lost stars is "too funny." Tell us your thoughts.
Two precious artifacts a prototype Nagler eyepiece and Steve O'Meara's Tele Vue Genesis telescope will be sold to the highest bidders in late July 2007.
The year's best grazing occultation in North America occurs on June 19-20, 2007, when the waxing crescent Moon covers Regulus (Alpha Leonis).
In the July 2007 issue of Sky & Telescope (page 32), science writer David S. Stevenson describes some of the recent progress made by astronomers in figuring out what causes Type Ia supernovae. Most supernova explosions signal the deaths of short-lived massive stars, but Type Ia blasts come from old white dwarfs, which are the…
NASA's Stratospheric Observatory for Infrared Astronomy, a telescope-toting 747SP jetliner, has successfully completed its first test flight.
On Tuesday evening, April 17, 2007, observers in Georgia and Florida will get a chance to watch asteroid 411 Xanthe cover the 4.2-magnitude star Iota Cancri.
From late April through mid-May 2007, professionals are seeking amateur observations of four X-ray binaries and a cataclysmic variable star.
The International Occultation Timing Association (IOTA) announced on April 3, 2007, the release of a free e-book, Chasing the Shadow: The IOTA Occultation Observer's Manual.
The Astronomical Society of the Pacific is getting a new executive director, and the American Astronomical Society has elected its next president.
Join our e-mail rapid-response network if you're ready, willing, and able to provide follow-up observations to professionals studying transient sky events.
The American Astronomical Society has awarded its first Chambliss Amateur Achievement Medal to Colorado asteroid enthusiast Brian D. Warner.
Late Saturday night, November 18, 2006, the Leonid meteor shower could produce a spectacular sky show over New York, New England, and eastern Canada.
NASA administrator Michael Griffin today gave the Hubble Space Telescope a new lease on life by announcing that astronauts will visit the observatory in 2008 to make repairs and upgrades.
Usually you expect to see planets at night. But in broad daylight on Wednesday, November 8th, the planet Mercury will cross the face of the Sun.
The Orionid meteor shower isn't one of the year's richest, but it's pretty, producing up to 20 "shooting stars" per hour.
The Stratospheric Observatory for Infrared Astronomy, a telescope-toting 747SP airliner, has received a fresh coat of paint in preparation for its first test flight.
A new award from the American Astronomical Society recognizes the contribution of backyard stargazers to advancing the science of astronomy.
After narrowly avoiding the budget ax, the Stratospheric Observatory for Infrared Astronomy (SOFIA) is nearing its first flight.
In order to resolve their ongoing debate over the definition of the word "planet," astronomers seem prepared to demote Pluto.
All hell broke loose when astronomers began openly debating the definition of the word "planet" at the general assembly of the International Astronomical Union in Prague.
The biggest question facing the world's professional astronomers, now gathered in Prague, is how to define the word "planet" and whether the definition should include Pluto.