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Total lunar eclipse composite image by Fred Espenak
Tonight | Oct 09, 2014

October 2014 guide to the five visible planets

Mars in the southwest at nightfall, Jupiter in the eastern half of sky from midnight till dawn and Mercury in the east before sunrise

Close-up of the boulder Cheops as it casts a long shadow on the surface of comet 67P/Churyumov-Gerasimenko. Cheops has a size of approximately 45 meters and is the largest structure within an a group of boulders located on the lower side of the comet’s larger lobe. The image was obtained on September 19th by Rosetta’s scientific imaging system OSIRIS from a distance of 28.5 kilometers. One pixel in this image corresponds to 50 centimeters.  Image via ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA
Science Wire | Oct 09, 2014

First named feature on a comet!

Scientists have named one of the largest boulders on Rosetta’s comet after an Egyptian pyramid.

Lunar eclipse illustration courtesy of Luc Viatour
FAQs | Oct 07, 2014

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.

Deborah Byrd
Science Wire | Oct 07, 2014

Join EarthSky’s Deborah Byrd at online viewing of total lunar eclipse

Slooh.com invites stargazers worldwide for an online viewing of the total eclipse of the moon on October 8. Deborah Byrd will be on hand as a special guest.

Photo by Anthony Lynch
Blogs | Oct 07, 2014

Is the October 8, 2014 full moon a supermoon?

There’s disagreement on whether the October 8, 2014 full moon should be called a supermoon. If it is one, it’s a super Hunter’s Blood Moon … in eclipse.

Photo credit: Oliver Floyd
Blogs | Oct 06, 2014

How often do 7 eclipses occur in 365 days?

It’s rare to have 7 eclipses in a calendar year. It’s less rare to have 7 eclipses in 365 days. There are 7 eclipses in 365 days 29 times in the 21st century!

A total solar eclipse
FAQs | Oct 05, 2014

Why aren’t there eclipses at every full and new moon?

There’s not an eclipse at every new and full moon, but there are from four to seven eclipses every year. Some are lunar, some are solar, some are total, and some are partial.

Blogs | This Date in Science | Oct 04, 2014

This date in science: Launch of Sputnik

Sputnik’s unassuming beep was a symbol not only of Russia’s remarkable accomplishment, but also of what many believed was Soviet superiority in space.

Image viaNASA's Goddard Space Flight Center/S. Wiessinger
Science Wire | Oct 02, 2014

Mega flares from a mini star

You’ve heard of X flares from our sun? This mini star’s biggest flare – seen in April, 2014 – was 10,000 times bigger than the biggest known solar X flare.

Science Wire | Oct 02, 2014

New origin for mysterious lunar Ocean of Storms

An ancient asteroid impact was thought to have created moon’s Ocean of Storms. Now scientists think it formed via processes within the moon itself.