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4 Sky Events This Week: Rival of Mars Does Battle With Red Planet

Mars meets a rival this week, delighting stargazers.

MAVEN Arrives in Martian Orbit

MAVEN and Mars, two great things that now go together.

4 Sky Events This Week: Moon Points to Crab and Leo’s Heart

A Lion’s Heart and some starry graveyards come this way for skywatchers.

4 Sky Events This Week: Bull’s Red Eye and Green Giant Join Moon

A supermoon starts the week for skywatchers.

Watch Final Summer Supermoon Tonight

A supermoon is on the rise.

Newfound “Pitbull” Asteroid Will Zip By Earth on Sunday

Good news, folks: The world won’t end on Sunday, when an asteroid nicknamed “Pitbull” will zip past Earth. But asteroid 2014 RC will provide some virtual sky-watching drama for fans of celestial flybys. (Related: “Asteroids and Comets.”) Discovered independently by two different observatory teams on August 31, the 60-foot-wide (20 meters) space rock will come closest to Earth at…

5 Sky Events This Week: Milky Way Gems Sparkle While Venus Snuggles With Leo

A bright moon steers skywatchers to Milky Way wonders this week.

Seven Sisters Star Cluster Controversy Solved

Good news for fans of that stargazer’s favorite, the Pleiades. Such star clusters are closer than astronomers supposed, most particularly when it comes to the iconic one known to many sky-watchers as the Seven Sisters.   Not only does a new study, published in Science magazine by a team led by Carl Melis of the University…

5 Sky Events This Week: Cosmic Teapot Steams While Neptune Hits Prime Time

Moonless nights offer starry delights to stargazers this week.

Stellar Snow Globe Mystery Solved With Hubble’s Help

Star clusters offer thrilling sights for stargazers.

Stunning Snapshot Reveals Dazzling Star Factories

A pair of glowing star factories beckon stargazers.

6 Sky Events This Week: Chance of Sky Lights and Shooting Stars

  Lunar and planetary spectacles fill the starry skies this week, alongside the chance of auroras and shooting stars. Perseids trickle. Late night on Monday, look for stragglers from the Perseids meteor shower. While it peaked a week ago, the shooting stars will continue to fly until August 24. According to the international observing reports, the Perseids…

5 Sky Events This Week: Scorpius Eyes the Moon, and Jupiter Rises

The moon glides through the mythical scorpion’s claw and appears at its largest in the heavens for 2014. Lunar Lineup.  As darkness falls on Monday, August 4, the waxing gibbous moon, hanging in the low southwestern sky, is at the end of a cosmic lineup that includes Saturn, Mars, and Spica. Their distinct color differences—orange…

Moon Invades Saturn This Weekend

The moon cozies up to Saturn on Sunday and Monday, even covering the ringed planet for some observers.

NASA Preps Mars Orbiters for Comet Close Encounter

A cometary near miss for Mars in a few months means meteor risks for NASA’s spacecraft orbiting the red planet. On October 19, the comet Siding Spring will brush by Mars, passing so close that the space agency this week announced it has put together a special playbook filled with protective measures for its orbiters there.…