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NASA's Low-Density Supersonic Decelerator
Science Wire | Mar 29, 2015

Public invited to NASA flying saucer broadcast

NASA’s rocket-powered, saucer-shaped test vehicle soon will fly into near-space. Join an hour-long live, interactive video broadcast on March 31.

Artist's concept of black hole winds, via ESA.
Science Wire | Mar 29, 2015

Black hole winds stop star formation

For the first time, astronomers have seen a supermassive black hole in action, blowing away its galaxy’s reservoir of star-making gas.

View larger. |  Nova Sag number 2 via Tom Wildoner.
Science Wire | Mar 29, 2015

Nova Sagittarii observation, March 29

The brightness of this unusual nova has gone up and down and now back up again. EarthSky friend Tom Wildoner tells you how to see the nova before it’s gone!

Science Wire | Mar 27, 2015

India’s Mars probe has fuel for extended mission

India’s Mars Orbiter Mission (MOM) was expected to end on March 24. But it turns out that the probe could have another 6 months of life left in it.

Science Wire | Mar 27, 2015

Curiosity rover detects nitrogen on Mars

The discovery adds to the evidence that ancient Mars was habitable for life.

Lunar eclipse illustration courtesy of Luc Viatour
FAQs | Mar 27, 2015

What is a Blood Moon?

A lunar tetrad – four total lunar eclipses in a row – began a year ago. The next eclipse in this tetrad will take place on April 4, 2015.

Image credit: NASA
Science Wire | Mar 27, 2015

Video: What is a pulsar?

Hear the word “pulsar” and wonder what it is? Take 95 seconds to watch this video from NASA Astrophysics.

Photo credit: NASA
Science Wire | Mar 26, 2015

First one-year ISS crew to launch Friday

The goal of the mission is to find out how the human body responds to a prolonged stay in space. Watch the launch, watch the arrival.

This map shows the rover's entire traverse from landing to that point. Image credit: NASA/JPL-Caltech/MSSS/NMMNHS
Science Wire | Mar 26, 2015

Mars rover finishes first-ever marathon on another world

On Tuesday, the Mars rover Opportunity completed a marathon – 26.2 miles (42.195 kilometers). Its finish time? Eleven years and 2 months.

Science Wire | Mar 24, 2015

Does wandering Jupiter account for our strange solar system?

Jupiter may have swept through the early solar system like a wrecking ball, destroying a first generation of inner planets before retreating into its current orbit.

Science Wire | Mar 24, 2015

Dwarf planet Ceres gets place names

First topographical map of Ceres with named quadrangles. Scientists announced the names at last week’s Lunar and Planetary Science Conference.

Science Wire | Mar 24, 2015

Do stars make sounds?

The stars might be singing – but, since sound can’t propagate through the vacuum of space, no one can hear them.

Based on Hubble Space Telescope images, this frame is a portion of a map of the surface of Pluto
Credit: NASA, ESA, and M. Buie (Southwest Research Institute)
Science Wire | Mar 23, 2015

Help name features on Pluto and Charon

New Horizons spacecraft will sweep past Pluto and its moons on July 15, revealing their surface features for the first time! You’re invited to help choose names.

Comet McNaught.  Photo by  Miloslav Druckmuller.  Used with permission.
Science Wire | Mar 23, 2015

When is our next Great Comet?

The Southern Hemisphere has had two Great Comets recently – McNaught in 2007 and Lovejoy in 2011. When will the Northern Hemisphere get one?

Sci fi concept of Dyson sphere  (Source)
FAQs | Mar 23, 2015

What is a Dyson sphere?

What if an advanced civilization could collect all of the energy emitted by its star?

Oct 23, 2014 partial solar eclipse by Mikael Linder
Blogs | Mar 21, 2015

Dates of lunar and solar eclipses in 2015 and 2016

Upcoming eclipses.

Image via Wikipedia
FAQs | Mar 20, 2015

Why aren’t day and night equal on the day of the equinox?

On the day of the equinox, the center of the sun would set about 12 hours after rising – given a level horizon, as at sea, and no atmospheric refraction.

"Supermoon total eclipse of equinox sun on march 20, as seen from Lisbon, Portugal - Canon EOS 7D, Sigma 70_300mm 1:4-5.6 DG / black polymer sheet filter" by Henrique Feliciano Silva
Science Wire | Mar 20, 2015

See it! Best photos of March 20 solar eclipse

Awesome photos of the March 20 solar eclipse, by EarthSky Facebook and G+ friends lucky enough to see it, and kind enough to share their pics.

Blogs | Mar 18, 2015

Is it possible to have three eclipses in one month?

Three eclipses in one calendar month are rare. Three eclipses in one lunar month are more common. From 2000-2050, it happens 14 times.

What is the bright spot of Ceres? Not long till we find out. Image credit: NASA
Science Wire | Mar 18, 2015

Dawn breaks over Ceres … and perhaps reveals signs of habitability

The Dawn spacecraft is about to start its investigation of Ceres. Suggestions of icy volcanism have led to speculation that the dwarf planet could potentially be habitable.

Artist’s conception of MAVEN’s Imaging UltraViolet Spectrograph (IUVS) observing the “Christmas Lights Aurora" on Mars. MAVEN observations show that aurora on Mars is similar to Earth’s "Northern Lights" but has a different origin.
Image credit: University of Colorado
Science Wire | Mar 18, 2015

Aurora and mysterious dust cloud around Mars

Spacecraft spies two strange phenomena in the Martian atmosphere: An unexplained high-altitude dust cloud and aurora that reaches deep into the Martian atmosphere.