Wednesday, August 10, 2011
Thursday, July 21, 2011
Pluto... really...
Hubble telescope has just confirmed that Pluto has 4 moons... Huh! Who knew! (And NO, Pluto is NOT a planet).
Hubble Discovers a New Moon Around Pluto
July 20, 2011: Astronomers using the Hubble Space Telescope have discovered a fourth moon orbiting the icy dwarf planet Pluto. The tiny, new satellite – temporarily designated P4 -- popped up in a Hubble survey searching for rings around the dwarf planet.
"I find it remarkable that Hubble's cameras enabled us to see such a tiny object so clearly from a distance of more than 3 billion miles (5 billion km)," said Mark Showalter of the SETI Institute in Mountain View, Calif., who led this observing program with Hubble.
The finding is a result of ongoing work to support NASA's New Horizons mission, scheduled to fly through the Pluto system in 2015. The mission is designed to provide new insights about worlds at the edge of our solar system. Hubble's mapping of Pluto's surface and discovery of its satellites have been invaluable to planning for New Horizons' close encounter.
"This is a fantastic discovery," said New Horizons’ principal investigator Alan Stern of the Southwest Research Institute in Boulder, Colo. "Now that we know there's another moon in the Pluto system, we can plan close-up observations of it during our flyby."
The new moon is located between the orbits of Nix and Hydra, which Hubble discovered in 2005. Charon was discovered in 1978 at the U.S. Naval Observatory and first resolved using Hubble in 1990 as a separate body from Pluto.
The dwarf planet’s entire moon system is believed to have formed by a collision between Pluto and another planet-sized body early in the history of the solar system. The smashup flung material that coalesced into the family of satellites observed around Pluto.
Lunar rocks returned to Earth from the Apollo missions led to the theory that our moon was the result of a similar collision between Earth and a Mars-sized body 4.4 billion years ago. Scientists believe material blasted off Pluto's moons by micrometeoroid impacts may form rings around the dwarf planet, but the Hubble photographs have not detected any so far.
"This surprising observation is a powerful reminder of Hubble's ability as a general purpose astronomical observatory to make astounding, unintended discoveries," said Jon Morse, astrophysics division director at NASA Headquarters in Washington.
P4 was first seen in a photo taken with Hubble's Wide Field Camera 3 on June 28. It was confirmed in subsequent Hubble pictures taken on July 3 and July 18. The moon was not seen in earlier Hubble images because the exposure times were shorter. There is a chance it appeared as a very faint smudge in 2006 images, but was overlooked because it was obscured.
Monday, June 20, 2011
Loïc is born
Thursday, April 14, 2011
Presenting Naomi
Monday, April 11, 2011
Pray for Japan from Ottawa
Photos of this video can also be found here
Photos of this video can also be found here
Thursday, March 10, 2011
Hello...
Thursday, July 22, 2010
Medical "time off"
Phil
Friday, January 02, 2009
Saturday, August 02, 2008
Gone baby gone...
Thursday, July 31, 2008
Adieu, Mom...
Monday, July 21, 2008
Bonne fête Québec
Ceux qui se veulent indépendantistes sont limités. L'essentiel de Québec est son âge et son histoire. Montcalm est mort. Le roi britannique gagne.
Depuis, en comparant le système (histoire) français et anglais, l'Anglais nous donne plus de liberté. Lisez votre histoire .http://en.wikipedia.org/wiki/French-Canadian l
Philippe Paquette
Monday, June 16, 2008
I had to add this one.
Tuesday, June 03, 2008
Friday, May 23, 2008
The Good Samaritan...
The Newfie smiled and said, 'Well ma'am normally I would agree wid ya , but after ya unzipped me fly tree times, I kinda tought we was friends.'
Thursday, April 24, 2008
My mother and sister
Tuesday, April 15, 2008
Monday, April 14, 2008
Introducing my friend Robert
Phil
Tuesday, March 18, 2008
Introducing André and Gretchen
Sunday, March 16, 2008
Slow Train Coming...
Saturday, March 15, 2008
Jethro Tull
Saturday, March 08, 2008
Love
Here is David and Ginette
Thursday, March 06, 2008
Saturday, March 01, 2008
Introducing Élie
The Philosophy of Charles Schultz
The point is, none of us remember the headliners of yesterday. These are no second-rate achievers. They are the best in their fields. But the applause dies. Awards tarnish. Achievements are forgotten. Accolades and certificates are buried with their owners .
2. Name three friends who have helped you through a difficult time.
The lesson: The people who make a difference in your life are not the ones with the most credentials, the most money, or the most awards. They are the ones that care .
Friday, February 29, 2008
Eclipse of the moon
Wednesday, February 27, 2008
Nice Short Films...
Cannes).
Good men...
George Washington
First president of US (1732 - 1799)
Thursday, February 21, 2008
On military defense
Wednesday, February 20, 2008
My prediction for US President... as of Feb 08
Tuesday, February 19, 2008
Meet JF
Thursday, February 07, 2008
Meet Tara
Monday, January 21, 2008
Mercury
…
"These are fantastic images," says Murchie. For one thing, "we've gotten our first good look at Caloris Basin," the biggest known impact crater on Mercury and one of the biggest craters in the entire solar system.
Right: Typical of the images returned by MESSENGER, this horizon shot shows the beautifully shadowed crater named Sholem Aleichem.
Browse the gallery for more.
Full article here.
Source: NASA