Fundamental constant might change across space

Research results currently under peer review imply that the fine-structure constant, which characterizes the strength of the electromagnetic force, might have different values depending on which direction scientists are looking in the sky.

Missing piece inspires new look at Mars puzzle

New experiments suggest that chlorine compounds from NASA's Viking landers then thought to be contaminants from cleaning fluids might indeed have contained carbon-based chemicals, the building blocks of life.

New Hubble observations of Supernova 1987A reveal composition of "star guts" pouring out

The new observations of the "String of Pearls" surrounding the remnant tell scientists not only what elements are being recycled into the Large Magellanic Cloud, but also how the dwarf galaxy changes its environment on human timescales.

Spitzer finds a flavorful mix of asteroids

Near-Earth objects seem to be more varied in color and composition than previously thought.

NASA selects investigations for first mission to encounter the Sun

The Solar Probe Plus will plunge directly into the Sun's atmosphere to learn why it's so much hotter than our star's visible surface and what propels the solar wind.

Recipe for water: just add starlight

Observations with the Herschel infrared space observatory have revealed that ultraviolet light is a key ingredient in the formation of an unexpected cloud of water vapor around an old red giant star.

ESO brings starburst galaxy into focus

NGC 4666's vigorous star formation is probably the result of gravitational interactions with neighboring galaxies.

NASA and ATK successfully test five-segment solid rocket motor

Despite the cancellation of the Constellation program, there is still a strong chance that the booster could play a part in future launch vehicles.

Spectrum of young extrasolar planet yields surprising results

The data indicate that young gas-giant planets are extremely cloudy.

NASA Glenn tests alternative green rocket engine

The non-toxic oxygen and methane propellant combination has the potential for greater engine performance.

Shrinking atmospheric layer linked to low levels of solar radiation

Research indicates that the Sun's magnetic cycle, which produces differing numbers of sunspots over an approximately 11-year cycle, may vary more than previously thought.

Kalmbach Publishing Co. acquires Discover magazine

The magazine will join Astronomy to enhance the publishing company's science coverage.

Meteorites and minerals planned for New Mexico mineral museum

The John H. Eicher Mineral Museum outside Animas, New Mexico, will connect a crossover interest between amateur astronomers and rock and mineral collectors.

Astronomy magazine celebrates its new observatory

On September 17, 2009, editors will dedicate the magazine's observatory at Rancho Hidalgo, near Animas, New Mexico.

Celestron celebrates 50 years in business

September 7th: Greenhouse Earth Part 1 – The Inconstant Sun

September 6th: Astronomy Vacations

September 5th: The Nordlinger Ries: A Deep Impact in the Heart of Europe

September 4th: Exoplanet Roundup

September 3rd: Joining Forces and Collaboration: FEDAM

September 2nd: Exótico Cielo Profundo: By the border of Vulpecula-Sagitta

September 1st: International Observe the Moon Night!

August 31st: Apollo 11 Conspiracy

August 30th: Astronomy and the iPhone

August 29th: The Search for Intelligent Life