Enjoying EarthSky? Subscribe.

137,890 subscribers and counting ...

Space

Lunar eclipse illustration courtesy of Luc Viatour
FAQs | Feb 09, 2015

What is a Blood Moon?

A lunar tetrad – four total lunar eclipses in a row – began on April 15, 2014. The last total lunar eclipse happened on October 8, 2014, and the next will take place on April 4, 2015.

Great Meteor Procession of 1913 via U. of Toronto
Blogs | This Date in Science | Feb 09, 2015

This date in science: Great Meteor Procession

During the Great Meteor Procession of February 9, 1913, bright meteors were seen to cross the sky on stately, nearly identical paths.

This image is a 2007 supercomputer simulation illustrating dark matter satellites as bright clumps around our Milky Way galaxy. Image via stanford.edu
Science Wire | Feb 07, 2015

Have astronomers pinpointed dark matter Galaxy X?

In 2009, astronomers predicted an unseen dark-matter-dominated dwarf galaxy orbiting our Milky Way – nicknamed Galaxy X. Now they say they’ve found it.

Image credit: NASA
Science Wire | Feb 06, 2015

When sounding rockets launch into auroras …

In late January, researchers launched sounding rockets into the northern lights. Great images and a video!

Artist's concept of New Horizons. Image Credit: NASA
Science Wire | Feb 05, 2015

Hello, Pluto! New images from New Horizons

On Clyde Tombaugh’s birthday, newly released images from New Horizons spacecraft showing Pluto and its largest moon, Charon. The craft is now on approach to Pluto!

A composite of Europa made from images from the Galileo spacecraft, which orbited in the jovian system for eight years, beginning in 1995.  Image via NASA/JPL
Science Wire | Feb 05, 2015

NASA steps closer to a Europa mission

The space community is buzzing with news of positive steps toward NASA’s planned mission to Jupiter’s fascinating moon Europa.

The images on the left shows the Hubble observation at the beginning of the event. On the left is the moon Callisto and on the right, Io. The shadows from Europa, which cannot be seen in the image, Callisto, and Io are strung out from left to right.


The images on the right shows the end of the event, approximately 42 minutes later. Europa has entered the frame at lower left with slower moving Callisto above and to the right of it. Meanwhile Io — which orbits significantly closer to Jupiter and so appears to move much more quickly — is approaching the eastern limb of the planet. Whilst Callisto’s shadow seems hardly to have moved Io’s has set over the planet’s eastern edge and Europa’s has risen further in the west. Image credit: NASA/ESA
Science Wire | Feb 05, 2015

Hubble captures rare triple transit of Jupiter’s moons

New images capture a rare occurrence as three of Jupiter’s largest moons – Europa, Callisto and Io – parade simultaneously across the giant planet’s banded face.

Maarten Schmidt via CalTech
Blogs | Feb 05, 2015

This date in science: Maarten Schmidt’s revelation about quasars

Maarten Schmidt’s 1963 revelation showed that quasars are exceedingly distant and unimaginably luminous. It changed our notion of what our universe is like.

The moon with Jupiter and iridescent clouds, Shot in Greece, by Nikolaos Pantazis?
Science Wire | Feb 04, 2015

See it! Best pics of full moon and Jupiter

An awesome gallery of photos of Jupiter and the full moon on February 3-4, 2015. Photos by EarthSky friends. Thank you all!

View larger. | Series of 19 images captured by Rosetta’s OSIRIS camera as the Philae lander descended to the surface of Comet 67P/Churyumov–Gerasimenko on 12 November 2014. The timestamp marked on the images are in GMT (onboard spacecraft time).  Image via ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA
Science Wire | Feb 03, 2015

Absolutely awesome images of comet lander Philae

ESA hopes communications with the Philae comet lander can be regained by May or June. Wait you’re waiting, check out these stunning newly released images!