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Important Notice
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ESA/NASA/JPL-Caltech
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Planck mission explores the history of our universe
Hot gas, dust, and magnetic fields mingle in a colorful swirl in a new map of our Milky Way Galaxy. The image is part of a new and improved data set from Planck, a European Space Agency mission in which NASA played a key role. Planck spent more than four years observing relic radiation left over from the birth of our universe, called the cosmic microwave background. The space telescope is helping scientists better understand the history and fabric of our universe as well as our Milky Way. The new data are available publicly and now include observations made during the entire mission. The Planck team says these data are refining what we know about our universe, making more precise measurements of matter, including dark matter, and how it is clumped together. Other key properties of our universe also are measured with greater precision, putting theories of the cosmos to ever more stringent tests. Read more. |
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NASA/ESA/The Hubble Heritage Team (STScI/AURA)
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Hubble captures rare triple-moon conjunction
The space telescope imaged three of Jupiter’s largest moons racing across the banded face of the gas-giant planet: Europa, Callisto, and Io. Read more. |
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Astronomy: Chuck Braasch and Roen Kelly
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To celebrate the magazine's 500th issue, the editors ofAstronomy have dedicated 52 pages to what they think are the 500 coolest things about space. From historical milestones to recent discoveries, from objects here in our solar system to those at the far reaches of the universe, from manned spaceflight to robotic explorers, this special issue covers it all.
Readers also can share which of the 500 is their favorite anecdote for a chance to win a Celestron telescope with the Coolest Space Facts Contest. Learn more. |
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Issue Preview
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Editor David J. Eicher shares highlights from the March issue. Watch now. |
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Observing podcast: Two nice double stars, open cluster NGC 2414, and the Medusa Nebula (Abell 21), by Michael E. Bakich, senior editor Dave’s Universe: Visiting historic Lowell Observatory, by David J. Eicher, editor Blogs from the Local Group: Only a few weeks left to win $2,500 for your astronomy outreach efforts! by Michael E. Bakich, senior editor Galaxies Gallery: Spiral galaxy NGC 2841 -- Bruce Waddington captured this image from near Anza, California. Video: The Real Reality Show: Why Asteroids Should Be Taken Seriously, with David J. Eicher, editor The Sky this Week: A daily digest of upcoming celestial events, by Richard Talcott, senior editor The Sky this Month: Jupiter shines brilliantly
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