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WEBCAST REPLAYS: NASA Webcast of Asteroid 2004 BL86 Flyby

Asteroid Flying By Earth Could Be Half-Kilometer Wide | Orbit Animation
Asteroid Flying By Earth Could Be Half-Kilometer Wide | Orbit Animation

NASA's Marshall Space Flight Center will host a live webcast tonight (Jan. 26) of the asteroid 2004 BL86 flyby of Earth. The webcast will begin at 11 p.m. ET and end at 1 a.m. ET (0400-0600 Jan. 27). The webcast will be provided by the Marshall center's Ustream feed, and will be included here at start time in the space below: 

Broadcast live streaming video on Ustream

From NASA: "The asteroid will safely pass about three times the distance of Earth to the moon, or approximately 745,000 miles (1.2 million kilometers) from Earth. Scientists have been tracking the path of the asteroid for 11 years and know its orbit well. Asteroid 2004 BL86 will not approach Earth this close again for at least 200 years. This is a rare opportunity for observation. Hope you will join us as we observe the flyby."

Slooh Webcast

The online Slooh observatory offered a free webcast today (Jan. 26) at 11 a.m. EST (1600 GMT) to track the mountain-sized asteroid 2004 BL86. You can watch the webcast replay on the website, or in the window below. A full story on the flyby and NASA's science campaign will be posted today.

From Slooh: "Slooh will cover the flyby of Asteroid 2004 BL86 live on Monday, January 26th starting at 8:00 AM PST / 11:00 AM EST / 16:00 UTC - International Times: Slooh will broadcast the event live from telescopes situated in Australia. Viewers can watch the live asteroid webcast free on The image stream will be accompanied by discussions led by Slooh host Will Gater, Slooh astronomer Bob Berman, and special guests including Dr. Paul Chodas, manager of JPL'S Near-Earth Object Program Office, and Dr. Lance Benner, NASA Research Scientist. Viewers can follow updates on the show and ask questions to be answered live on air by using the Twitter hashtag #SloohBL86."

In addition to the Slooh webcast, the Italy-based Virtual Telescope Project will offer a second free webcast at 2:30 p.m. EST (1930 GMT), with astrophysicist Gianluca Masi overseeing the event. 
You can watch the Virtual Telescope Project webcast directly at:
Asteroid Flying By Earth Could Be Half-Kilometer Wide | Orbit Animation


Interstellar Spaceflight and Astrobiology with Cameron Smith

Anthropologist Cameron Smith will discuss the biological and cultural aspects of interstellar human spaceflight during a talk today (Dec. 3) at 7 p.m. EST (0000 GMT). Watch it live in the window below, courtesy of the Perimeter Institute for Theoretical Physics in Canada:

"The discovery of countless exoplanets and new ideas in propulsion physics have resurrected international interest in the ancient concept of humanity traveling far beyond Earth," Perimeter Institute officials wrote in a description of the talk. "Such voyages will take place over many generations, requiring careful attention to both biological and cultural change over time. In this talk, Cameron Smith will outline the foundations of a biocultural science of long-term space settlement."

Related stories: 

Gallery: Visions of Interstellar Starship Travel

How Interstellar Space Travel Works (Infographic)

Visions of the Future of Human Spaceflight

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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