3601–3620 of 6,715 results
Lunar eclipse, multiple exposure

Celestial News & Events

April's Total Eclipse of the Moon

North Americans haven't seen a total eclipse of the Moon since 2011. But this long dry spell breaks late on the night of April 14–15 as the Moon makes a leisurely pass through Earth's deepest shadow.

Exoplanets

Hot Jupiters Keep Their Stars Young

Sizzling gas giants circling close to their host stars — so-called hot Jupiters — keep their host stars young and active, a new study suggests.

http://sites.agu.org/newsroom/files/2014/04/14-20-combo-graphic-2000-pixels.jpg

People, Places, and Events

An Asteroid to Rule Them All

Scientists have new insight into the damage caused by a Rhode Island–size asteroid that hit Earth more than 3 billion years ago, making the rock that wiped out the dinosaurs look like a lightweight.

NorthEast Astronomy Forum in 2008

People, Places, and Events

Amateurs Flocking to NEAF this Weekend

The Northeast Astronomy Forum in Suffern, NY, will welcome visitors from across the world on April 12–13, 2014. Sky & Telescope will be there. Will you?

Cosmology

Quasars Track Expanding Universe

The most precise measurement yet of the Hubble parameter illuminates dark energy — the elusive entity that’s accelerating the universe’s expansion.

LADEE over the Moon

Solar System

LADEE Skims the Moon Before Crash

NASA has a fully functioning spacecraft orbiting the Moon, all science goals completed, and a lunar eclipse coming up. It's a perfect opportunity to make some risky but potentially rewarding swoops within 2 miles of the lunar surface.

Mars with strange weather

Celestial News & Events

Brightest Mars in Six Years

Mars is making its nearest and brightest appearance in the night sky since the end of 2007.

Black Holes

A New Galactic Yardstick

Astronomers have developed a new method to measure distances to bright but faraway galaxies, a tool which will help better constrain the expansion rate of the universe.

Solar System

The Subsurface Ocean of Enceladus

Data from NASA’s Cassini spacecraft have provided further evidence that Saturn’s tiny moon Enceladus harbors a liquid ocean under its surface.

People, Places, and Events

Celebrate the Night Sky This Month

Join the world’s largest celebration of astronomy — Global Astronomy Month — throughout April.

Astrobiology

Fooling with the Universe

This year’s April Fools' provides a wealth of alarming results. Catch up on all the scientific shenanigans here.

Celestial News & Events

Tour April's Sky: One Last Look at Winter's Stars

It's a great month, celestially speaking: the brilliant stars of winter crowd in the southwest at nightfall, Jupiter is joined by Mars, and the first total lunar eclipse in 2½ years occurs at mid-month.

http://hubblesite.org/newscenter/archive/releases/2000/2000/37/image/a/

Black Holes

Dust in the Heart of Circinus

Infrared observations of the Circinus Galaxy may help reveal the shape of the dusty region fueling its active galactic nucleus and shed light on what governs dust structures in other galaxies.

http://www.esa.int/spaceinimages/Images/2013/12/Rosetta_and_Philae_at_comet

Solar System

Rosetta Spots Its Comet

The European Space Agency’s comet-chasing spacecraft has imaged its destination for the first time since waking up from 957 days of hibernation.

Clouds along the occultation path

Astronomy and Society

Global "Fail" for the Big Regulus Cover-up

There was widespread hope that thousands of skywatchers would see the bright star Regulus briefly occulted by an asteroid early on March 20th. In the end, likely <u>no one</u> saw it. Here's why.

Solar System

Chariklo: An Asteroid with Rings

An international team of observers has made the surprising discovery that a distant asteroid has two distinct, dense rings.

Orbits of 2012 VP113 and Sedna

Solar System

New Object Offers Hint of "Planet X"

Astronomers have kicked around the idea of a distant "Planet X" for decades. But the recent discovery of 2012 VP<sub>113</sub>, located in an orbital "no man's land" roughly twice as far away as Pluto, has stoked the possibility that it really exists.

Cosmology

Dark Matter Spotted in the Milky Way?

A team of astronomers claim to have the most compelling case for annihilating dark matter yet.

Solar System

Active Volcanoes on Venus?

New images of Venus show features that look like hot spots, hinting there may be active volcanoes on the planet today.

http://lroc.sese.asu.edu/news/uploads/gigapan_small_str01.serendipityThumb.png

Solar System

Interactive Mosaic of Moon's North Pole

With the first interactive lunar north pole mosaic released by the NASA’s Lunar Reconnaissance Orbiter Camera team you can explore an area of the Moon’s northern hemisphere about the size of Alaska and Texas combined.