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WEBCAST REPLAY: Partial Solar Eclipse Webcast by Slooh

Oct. 23, 2014, Partial Solar Eclipse Seen at Griffith Observatory
About 20 minutes into the partial solar eclipse, another image from the website of Griffith Observatory, Los Angeles, shows the moon encroaching more on the sun's disk on Oct. 23, 2014..
CREDIT: Griffith Observatory

(Editor's note for 8 pm ET: Today's webcasts of the partial solar eclipse have concluded. A video of the eclipse is featured above. A wrap story will be posted to shortly.) Experts with the Slooh Community Observatory will host a live webcast of the partial solar eclipse set to occur on Oct. 23. FIRST PHOTOS: First Photos: The Partial Solar Eclipse of Oct. 23 . You can watch the eclipse webcast starting at 5 p.m. EDT (2100 GMT) directly through, or you can see it live in the window below:

Today's solar will last about three hours, as the moon appears to take a bite out of the sun. The October partial solar eclipse will begin at 5:07 p.m. EDT (2:07 p.m. PDT/2107 GMT), and be visible to potentially millions of skywatchers across North America.

Partial Solar Eclipse of October 2014: Visibility Maps

The Slooh Community Observatory webcast will feature views of the partial solar eclipse from the Prescott Solar Observatory in Arizona, and feature commentary from solar scientist Lucie Green and Slooh astronomer Bob Berman, with Slooh's Geoff Fox acting as host. Viewers can ask questions during the webcast using the Twitter hashtag #sloohpartialeclipse.

Partial Solar Eclipse Today: A Weather Forecast

NASA Webcast from Marshall Space Flight Center, Huntsville, Ala.

Broadcast live streaming video on Ustream

Griffith Observatory Webcast

In addition to the Slooh webcast, the Griffith Observatory in Los Angeles, California will provide live views of the partial solar eclipse from its historic site. That eclipse webcast will begin at 5 p.m. EDT (2 p.m. PDT/2100 GMT) and can be found here:

Finally, the University of Arizona's SkyCenter atop Mount Lemmon in Arizona will provide its own live views from the Steward Observatory. That webcast will begin at 3 p.m. EDT (1 p.m. MDT/1900 GMT), and can be found here:

You should never look directly at the sun, but there are ways to safely observe an eclipse.
You should never look directly at the sun, but there are ways to safely observe an eclipse. See how to safely observe a solar eclipse with this infographic.
Credit: Karl Tate, Contributor

WARNING: NEVER look a the sun through binoculars or a telescope without using safety filters! Serious eye injury can result. Safety eclipse glasses, and special solar telescope filters are vital for safe viewing of any type of solar eclipse. 

If you do not have safety equipment, you can build a pinhole camera or a solar projector with binoculars  to safely view an eclipse indirectly. 

More Resources: 



Comet Siding Spring's Flyby of Mars Webcasts

(UPDATE: The first Slooh webcast has ended. The next event will begin at 8:30 pm ET.)The Slooh Community Observatory will broadcast a double feature about Comet Siding Spring's close pass by Mars today (Oct. 19). The first Slooh webcast will start at 2:15 p.m. EDT (1815 GMT), and the second will begin at 8:30 p.m. EDT (0030 Oct. 20 GMT). Full Story: Comet Buzzes Mars in Once-in-a-Lifetime Flyby . You can watch the webcasts live in the window below:

Comet Siding Spring is due to make a close pass with the Red Planet, flying only 87,000 miles (139,500 kilometers) from Mars. Officials monitoring spacecraft orbiting Mars are maneuvering them into safe positions so that they will not experience any ill affects from the icy wanderer's dust.

The Virtual Telescope Project will also host a webcast on Oct. 19 starting at 12:45 p.m. EDT (1645 GMT). You can watch the webcast here: A window of the webcast will appear below before the start time as well.

Related Links: 

Comet Quiz: Test Your Cosmic Knowledge

Mars-Bound Comet: Photos of Comet C/2013 A1 Siding Spring (Gallery )

Mars-Bound Comet Sprouts Twin Jets in Hubble Telescope Photos

Planet Definition Debate

If you're confused about what exactly a planet is, don't feel bad: Astronomers are still arguing over the term eight years after the International Astronomical Union (IAU) came up with a controversial new definition that demoted Pluto to "dwarf planet" status.

The Harvard-Smithsonian Center for Astrophysics (CfA) is putting on an event tonight (Sept. 18) at 7:30 p.m. EDT (2330 GMT) that could help crystallize your views. The event, which will be webcast live in the window below, is called "What Is a Planet?" and features three different experts presenting their viewpoints on the term, and on the ongoing debate.

Photos of Pluto and Its Moons

Pluto: A Dwarf Planet Oddity (Infographic)

Our Solar System: A Photo Tour of the Planets

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