Phillip Plait, better known as Phil Plait, is an astronomer, writer, blogger, and skeptic. He got his main start in physics and astronomy by working with the Cosmic Background Explorer and the Hubble telescope before moving into the lucrative career of popularizing science and debunking pseudoscience. Plait was the president of the James Randi Educational Foundation (JREF) between 2008 and 2009. He also has a small asteroid named after him (165347 Philplait).
Plait earned his Ph.D. in Astronomy in 1994 from the University of Virginia. After his work with Hubble and COBE, Plait attended Sonoma State University, where he worked on outreach for the Fermi Gamma Ray space telescope, a small lab for gamma ray observation in Low Earth Orbit. Since then, he's appeared in various locations, such as Coast to Coast AM, Penn and Teller's Bullshit!, Space TV, and the Yearbook of Science and the Future, published by Encyclopedia Britannica.
 Bad Astronomy
In the late 1990s, Plait started Bad Astronomy, a website dealing with, well, bad astronomy — an attempt at correcting misinformation about astronomy in TV shows, movies and print, as well as popular astronomy-related misconceptions (you can stand an egg on its end on any day, not only on an equinox). The website also contained (and still contains) explanations of various astronomical concepts on a popular level and answers to astronomy questions from the readers.
His work on Bad Astronomy inevitably lead him towards fighting pseudoscience, conspiracy theories and other fringe ideas. He tackled Fox TV's 2001 Conspiracy Theory: Did We Land on the Moon? special and other Moon hoax claims. He also devoted pages to refuting the claims of Richard Hoagland, Nancy Lieder and Mark Hazlewood's Planet X and James McCanney's "electric comets" bullshit.
Like most websites of that era, Bad Astronomy was a collection of static HTML pages, but in March 2005 Plait started a blog. Originally, the blog was supposed to supplement the website, but soon overshadowed it and in July 2006 replaced the main site. In July 2008, the Bad Astronomy blog was moved under the umbrella of Discover Magazine's blog collective; in November 2012 it was moved to Slate. The old site and blog are still available online, though they're not updated and the badastronomy.com address redirects to the latest blog.
Bad Astronomy's message board was merged with the one of Universe Today to form the Bad Astronomy and Universe Today Forum, which remains a place feared by space bullshitters to this day. In July 2012, BAUT was merged with Pamela Gay's CosmoQuest forum, where the BAUT rules and moderation continue.
In 2002 Phil Plait collected the material from his website in a book with the same title — Bad Astronomy. It started an entire series on pseudoscience debunking material, including Bad Medicine.
In 2007 he wrote Death from the Skies, which explores all the ways outer space is trying to murder us all.
From August 2008 to December 2009 Plait was president of the James Randi Educational Foundation (JREF). He left the post to work on a secret television project (see below). Plait was been succeeded as JREF president by D. J. Grothe, formerly of the Center for Inquiry.
 Bad Universe
Bad Universe was a short series of, errrr, documentaries created for the Discovery Channel. It covered approximately the same material as Death from the Skies. Only three episodes were produced:
- Asteroid Apocalypse, about the possibility of a catastrophic asteroid impact on Earth.
- Alien Attack!, about the possibility of alien invasion.
- Death Stars, about supernovae, gamma-ray bursts, solar flares and all other neat ways the stars (including our Sun) can smite us.
Like MythBusters, the show made heavy use of explosions and other spectacular demonstrations. Apparently, it didn't pan out well.
The second episode may have been a "flight on a ballistic trajectory over a Longimanus" moment for Plait, as a segment involving certain claims about space travel and acceleration (g-forces) was not just an oversimplification, but outright wrong and met with a strong reaction in the comments to his blog and elsewhere. Phil claimed that continuous high acceleration was necessary for interstellar travel, which is not true — even an acceleration of 1 g (~9.8 m/s, the standard Earth gravity) is enough for gaining very high speeds very quickly. Speculation is that the segment was added so that Phil could get a joyride on a jet-fighter.
Throughout each episode Phil can be heard exclaiming "Holy Haleakalā[wp]." Many, many times.
- Bad Astronomy, current site at Slate Magazine.
- Bad Astronomy, the blog at Discover Magazine.
- Bad Astronomy, the original website.
- Bad Universe, video gallery at the Discovery Channel.
- A speech entitled "Don't be a Dick", about addressing pseudoscience followers.
- Biography at the Sonoma State University website.
- Plait's G+ page.
- ↑ "165347 Philplait" in NASA's JPL Small-Body Database.
- ↑ Really. Summaries of the topics of his interviews there can be found in the "Misconceptions" section of the old Bad Astronomy website.
- ↑ Phil Plait. "Fox TV and the Apollo Moon Hoax." Bad Astronomy. 2001 February 13.
- ↑ Phil Plait. "Richard Hoagland's Nonsense." Bad Astronomy. 2011 March 5.
- ↑ Phil Plait. "The Planet X Saga: Introduction." Bad Astronomy. 2011 March 5.
- ↑ Phil Plait. "James McCanney's Nonsense." Bad Astronomy. 2011 March 5.
- ↑ Christopher Wanjek. "Bad Medicine." Christopher Wanjek.com.
- ↑ Phil Plait. "Issue #25." The Bad Astronomy Newsletter. 2002 October 4.
- ↑ Jeff Wagg. "New JREF President - Phil Plait." James Randi Educational Foundation. 2008.
- ↑ "James Randi Educational Foundation Names New President." James Randi Educational Foundation. 2009 December 7.