Category: Search for Life

SETI 2.0.

“‘We’ve looked at far, far fewer than 10 million stars since 1960, and so we really can’t say anything worthwhile yet about whether or not intelligent life is out there,’ Drake said. ‘Given our capabilities now, we might have something useful to say one way or another in 25 years.'”

In the wake of all these new planets, the WP takes a gander at the new and improved SETI program. “‘We’re finding new extra-solar planets every week,’ she said. ‘We now know microbes can live in extreme environments on Earth thought to be impossible for life not very long ago, and so many more things seem possible in terms of life beyond Earth.’”

Waterworld.

“Charbonneau said it’s unlikely that any life on the newly discovered planet would be similar to life on Earth, but he didn’t discount the idea entirely. ‘This planet probably does have liquid water,’ he said.” Don’t mean to turn GitM into the We Found a Planet Weekly, but this also seems like big doings: Astronomers discover a watery, Earth-like planet relatively nearby. (As in 40 light years away, orbiting GJ 1214b.) “While the planet probably has too thick of an atmosphere and is too hot to support life similar to that found on Earth, the discovery is being heralded as a major breakthrough in humanity’s search for life on other planets.” I’ll say.

Update: “‘I was instantly excited because the glint reminded me of an image of our own planet taken from orbit around Earth, showing a reflection of sunlight on an ocean,’ Stephan said. ‘But we also had to do more work to make sure the glint we were seeing wasn’t lightning or an erupting volcano.’” Might be some more water closer to home too: NASA confirms liquid on Saturn’s moon of Titan.

Water, Water Everywhere…

“‘The discovery opens a new chapter in our understanding of the moon,’ the space agency said in a written statement.” It’s official: Data from NASA’s LCROSS impact of a few weeks ago confirms the recent findings of Chandraayan-1: It ain’t Hoth or Rura Penthe, but there is a “significant amount” of water on the moon, like, ice-field size.

“The amount of water they found in the plume was a couple of hundred kilograms in total, but that indicates there is a lot more still lying on the surface. They don’t know how much exactly just yet.” (As we found out recently, the same might also hold true of Mars.)

“‘The full understanding of the LCROSS data may take some time. The data is that rich,’ said Colaprete. ‘Along with the water in Cabeus, there are hints of other intriguing substances. The permanently shadowed regions of the moon are truly cold traps, collecting and preserving material over billions of years.‘” I’m very reminded of James Hogan’s Inherit the Stars right now. Also, it’s probably about time to start taking lunar exploration a bit more seriously again, eh?

Rock of Ages.

“‘We would have never dreamed you would find a rocky planet so close,’ he said. ‘Its year is less than one of our days.'” Astronomers discover the first rocky planet outside our solar system in CoRoT-7b.

But don’t prep the colony ship just yet: “It is so close to the star it orbits ‘that the place may well look like Dante’s Inferno, with a probable temperature on its ‘day face’ above 3,600 degrees Fahrenheit (2,000 degrees Celsius) and minus-328 degrees Fahrenheit (minus 200 degrees Celsius) on its night face,’ said Didier Queloz of Geneva Observatory in Switzerland, the project leader.” Eh, we’ll work with it.

How Red Does Your Garden Grow?

“‘There’s nothing about it that would preclude life. In fact, it seems very friendly,’ said mission scientist Samuel P. Kounaves of Tufts University. ‘We were flabbergasted.‘” Hope y’all like asparagus: Early tests by the Mars Phoenix seem to indicate that the Martian soil is more nutrient-rich than anyone expected. “Carbon-based organic material, however, has not been found and may be impossible to detect with the equipment now on Mars.“

Ice, Ice, Baby?

“‘We were expecting to find ice within two to six inches of the surface,’ said Phoenix principal investigator Peter Smith of the University of Arizona in a statement. ‘The thrusters have excavated two to six inches and, sure enough, we see something that looks like ice. It’s not impossible that it’s something else, but our leading interpretation is ice.’” Well, it sure looks like ice. The Phoenix Mars Lander seems to have found its quarry almost immediately after landing. And where there’s water…

Distant Mirrors.

“‘This is a landmark discovery because it implies that solar system analogs may be very common, at least scaled-down versions,’ said Sara Seager, an extra-solar planet expert from the Massachusetts Institute of Technology. ‘…We are on an inexorable path to finding other Earths.‘” Astronomers find a solar system not unlike our own 5,000 light years away. “We are seeing the emergence of a new planet-finding technique — one that opens up an entirely new capability for planet finding. It is more powerful than we ever thought possible.”

Undone by The Great Eye.

Have we inadvertently killed Schrodinger’s cat? No, it’s much, much worse. Cosmologists at Case Western Reserve and Vanderbilt speculate that mankind may have hastened the end of the universe by observing dark energy in 1998. “[Q]uantum theory says that whenever we observe or measure something, we could stop it decaying due what is what is called the ‘quantum Zeno effect,’ which suggests that if an ‘observer’ makes repeated, quick observations of a microscopic object undergoing change, the object can stop changing – just as a watched kettle never boils…Prof Krauss says that the measurement of the light from supernovae in 1998, which provided evidence of dark energy, may have reset the decay of the void to zero — back to a point when the likelihood of its surviving was falling rapidly. ‘In short, we may have snatched away the possibility of long-term survival for our universe and made it more likely it will decay,’ says Prof Krauss.” D’oh! But wouldn’t this presume that at no other place or time in our unfathomably gigantic universe did any other civilization make the same observations? Given the odds of intelligent life out there, that seems unlikely. (And, if you think this all sounds goofy and ridiculous, just wait until we get to the multiverse…)

Water, water everywhere…

“‘We’re thrilled to have identified clear signs of water on a planet that is trillions of miles away,’ said study leader Giovanna Tinetti of the Institut d’Astrophysique de Paris in France.” Scientists discover clear signs of existing water well outside the solar system at HD 189733b, a Jupiter-ish gas giant in the Vulpecula constellation, 64 light years away. “The researchers found that the planet absorbed starlight in such a way that could only be explained by the presence of water vapor in its atmosphere.“