NASAS Kepler Mission Blasts Off

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NASA’s Kepler spacecraft launched into space from Cape Canaveral on Friday at 10:49 PM EST, beginning an ambitious mission to discover Earth-like planets around other stars, according to Space.com.

The $600 million spacecraft will study the Cygnus-Lyra region of the Milky Way galaxy for at least three years in a planetary census that could potentially realign humanity’s view of its place in the universe, the report said. The craft will orbit the sun once every 371 days, trailing the Earth’s orbit in the process.

“At the end of those three years, we’ll be able to answer, ‘Are there other worlds out there or are we alone?'” said William Borucki, Kepler’s principal investigator at NASA’s Ames Research Center in Moffett Field, Calif., in the article. (Image credit: NASA TV)

Illinois: Pluto is a Planet

NASA_Pluto_Hubble.jpgIllinois’ state government has declared that Pluto is a planet, in an attempt to bypass the International Astronomical Union’s 2006 ruling to reclassify the icy world as a member of the Kuiper belt, Discover reports.

The decree reads as follows: “RESOLVED, BY THE SENATE OF THE NINETY-SIXTH GENERAL ASSEMBLY OF THE STATE OF ILLINOIS, that as Pluto passes overhead through Illinois’ night skies, that it be reestablished with full planetary status, and that March 13, 2009 be declared ‘Pluto Day’ in the State of Illinois in honor of the date its discovery was announced in 1930.”

Apparently this has something to do with the fact that Clyde Tombaugh, the fellow who discovered Pluto in 1930, was born in Illinois. The state government also said something about how Tombaugh is the only American to discover a planet, forgetting the hundreds of planets Americans have since discovered orbiting other stars. Hey, at least Illinois found something to take our minds off of Blagojevich.

Martian Ice Age Left Water Tracks

NASA_Mars_Ice_Age.jpgMaybe Percival Lowell was on to something after all: A new analysis of canal-like features on Mars offers more evidence of flowing water on the planet’s surface, possibly as late as several hundred thousand years ago, according to Scientific American.

Images snapped by a camera on-board the Mars Reconnaissance Orbiter show a gully that’s about one kilometer across, with a delta-like fan at the bottom. Researchers discovered an array of craters on the delta’s western portion, and suspect that a large meteorite impact scattered rocks to create what’s called secondary craters, according to the article.

Tracing backwards, the pattern of pockmarks led to a large impact crater about 100 kilometers to the southwest. The crater’s presence helps geologists date the gully, which researchers believe indicates water activity, possibly due to melting snow from an older Martian ice age.

“We had hoped to find the source of these secondary craters, and voilà, we found a link to this big crater,” said lead study author Samuel Schon, a graduate student at Brown University’s Planetary Geosciences Group, in the article.

Cassini Spacecraft Discovers New Saturn Moon

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NASA announced that its Cassini spacecraft has found within Saturn’s G ring a small moonlet that shows up in photographs as a “faint, moving pinprick” of light. Scientists now believe the moonlet is one of the main sources of the G ring and its single ring arc.

The report said that Cassini imaging scientists studied about 600 days worth of images and found the tiny moonlet embedded within a partial ring. NASA estimates that the moonlet is about a third of a mile across (or about 1700 feet).

“Before Cassini, the G ring was the only dusty ring that was not clearly associated with a known moon, which made it odd,” said Matthew Hedman, a Cassini imaging team associate at Cornell University in Ithaca, N.Y., in a statement. “The discovery of this moonlet, together with other Cassini data, should help us make sense of this previously mysterious ring.”

The discovery brings the total of Saturn’s known moons to over 60. Cassini launched back in 1997, employed two really cool slingshot-like maneuvers around Venus to gain thrust for the long trip, and arrived at Saturn in 2004. It’s been taking photographs and doing science out there ever since. For more information about the Cassini-Huygens mission visit saturn.jpl.nasa.gov.

NASAs Kepler Spacecraft Set for Launch

NASA_Kepler_Spacecraft.jpgNASA’s Kepler spacecraft, which will attempt to discover Earth-like planets in our galaxy, has been cleared for launch at Cape Canaveral this Friday at 10:50 PM EST.

The Kepler spacecraft will focus in on a specific patch of space for the next three and a half years, searching for signs of Earth-sized planets revolving around stars that are similar to our own. The patch of space contains about 100,000 stars, so there should be plenty to look at.

NASA said in a statement that Kepler will look for slight dimming in the stars as planets pass between the star and Kepler, using special versions of detectors like the ones in common digital cameras. The spacecraft will orbit the earth in such a way that it can stay focused on the same stars the entire time, which is something that Hubble and other missions haven’t been able to do, according to the agency.

Astronomer: Milky Way Could Be Filled With Earths

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The odds are high that we’re not alone in the universe. In fact, there may be 100 billion Earth-like planets in the Milky Way, or one for every sun-type star in the galaxy, said Alan Boss, a Carnegie Institution astronomer and author of “The Crowded Universe: The Search for Living Planets,” in a new CNN report.

Based on the number of “super-Earths,” or planets several times the mass of the Earth, but smaller than gas giants such as Jupiter, that have been discovered already among the 330 exoplanets we know of outside the solar system, Boss predicts that any of them that have liquid water could also have life.

“Now that’s not saying that they’re all going to be crawling with intelligent human beings or even dinosaurs,” he said in the article. “But I would suspect that the great majority of them at least will have some sort of primitive life, like bacteria or some of the multicellular creatures that populated our Earth for the first 3 billion years of its existence.”

Soon, NASA will launch the Kepler Mission, which contains a telescope that will study 100,000 stars in the Cygnus-Lyra region of the Milky Way for more than three years, the report said, in an aim to detect small dips in a star’s brightness that could indicate the presence of orbiting planets. The mission is scheduled for launch March 5.

Mars Could Host Liquid Water

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Scientists may have discovered the first proof that Mars currently hosts liquid water, according to National Geographic.

In a series of photos taken of the Phoenix Mars robotic craft’s landing strut, liquid droplets appear to be growing, dripping, and merging over the course of the past month, the report said. Scientists working on the mission said that the globs are probably saline mud that splashed onto the strut when the craft landed; salt in the mud could have absorbed water vapor in the atmosphere and formed the drops.

Phoenix co-investigator Nilton Renno of the University of Michigan said in the article that the water can stay liquid even in the frigid Martian arctic because it contains a high amount of perchlorates. “[That’s] a salt with properties like the antifreeze used to melt snow here in Michigan,” Renno said. While the evidence points to the presence of liquid water, it’s probably not the kind that could harbor life—it’s too cold and salty, according to the report.

NASA to Launch Europa, Titan Missions

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NASA announced at a meeting in Washington that it will continue to pursue sending a mission to Jupiter and its four largest moons, as well as plan another mission to Saturn to visit Titan and Enceladus.

NASA said that the Europa Jupiter System Mission will focus on a Europa Orbiter to explore that icy moon of Jupiter and its subsurface water ocean. Although much of the talk about possible life elsewhere in our solar system centers around Mars, astronomers have long maintained that Europa, one of Jupiter’s four largest moons, could also harbor life. The mission would launch probes in 2020 and followup orbiters in 2026.

The Titan Saturn System Mission, meanwhile, would center around an orbiter, a lander, and a research balloon; its launch date is so far unspecified. In a statement, the agency called the proposed missions “grand endeavors that set the stage for future planetary science research.”

Huge Explosion Detected in Space

Gamma_Ray_Blast_NASA.jpgNASA’s Fermi telescope has detected a massive explosion in space which scientists claim is the largest gamma-ray burst ever detected, AFP reports. The blast produced energies ranging from 3,000 to more than five billion times that of visible light, astrophysicists said.

“Visible light has an energy range of between two and three electron volts and these were in the millions to billions of electron volts,” NASA astrophysicist Frank Reddy said in the article. “If you think about it in terms of energy, X-rays are more energetic because they penetrate matter. These things don’t stop for anything—they just bore through and that’s why we can see them from enormous distances.”

The visible blast occurred back in September somewhere in the Carina constellation, which is about 12.2 billion light years away. That means that while we may have first heard of it back in September, it actually happened before our own solar system formed.

Martian Wind Boosts Rovers Electrical Power

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NASA’s Mars Exploration Rover Spirit is doing better this month after a Martian wind blew away some of the dust that has accumulated on its solar panels, increasing their electrical output, according to NASA. Spirit’s daily energy supply has risen by about 30 watt-hours—defined as the amount of energy used to power a 30 watt light bulb for one hour—from 210 watt-hours to 240. The rover uses about 180 watt-hours per day for basic survival and communications, the report said, so the increase doubles the power available for driving and using instruments to perform science.

“We will be able to use this energy to do significantly more driving,” said Colette Lohr, a rover mission manager at NASA’s Jet Propulsion Laboratory, Pasadena, Calif., in a statement. “Our drives have been averaging about 50 minutes, and energy has usually been the limiting factor. We may be able to increase that to drives of an hour and a half.” Both rovers are still operating on the planet after five years. Spirit was the same rover that experienced a temporary glitch a few weeks ago. (Via Slashdot)