Stardust images of comet locate crater from Deep Impact’s impact

More news from Stardust: scientists have now identified what they think is the crater produced by Deep Impact’s impact in 2005. Key quote:

The images revealed a 150-metre-wide crater at the Deep Impact collision point that was not present in 2005. The crater is a subtle feature in the images, but it appears consistently in multiple views from the spacecraft. “So I feel very confident that we did find the [impact] site,” said mission member Peter Schultz of Brown University in Providence, Rhode Island, at a press briefing on Tuesday. The crater’s features are “subdued” rather than sharply defined, like those of craters made in hard materials like rock. “The message is: This surface of the comet where we hit is very weak,” said Schultz. The crater also has a small mound in its middle, indicating that some of the material thrown up by the impact was drawn by the comet’s gravity back down into the crater, he said: “In a way, it partly buried itself.”

Researchers discover a new set of deep-sea volcanic vents in the south Pacific

Researchers have discovered a new set of deep-sea volcanic vents in the south Pacific, suggesting these vents are more common than previously believed. Key quote:

Using an underwater camera system, the researchers saw slender mineral spires about 10 feet tall, with hot water gushing from their peaks, and white mats of bacteria coating their sides. The vents are at a depth of 1,706 feet in a newly discovered seafloor crater close to the South Sandwich Islands, a remote group of islands about 310 miles southeast of South Georgia.

Science an Early Budget Winner … But Fight Has Just Begun

Await the squeals from scientists: The journal Science notes the differences between the budget proposals coming from the House Republicans (cutting funds to science) and Obama (increasing funds to science) and hopes for the best. (You can also get a good idea about the increases to science that Obama proposes by going to this ScienceInsider story and scanning down the various articles.) Key quote:

Both conservatives and liberals agree: the main pressure pushing the federal deficit is entitlements; the discretionary budget is dwarfed by mandatory Medicare, Medicaid, and Social Security spending. And yet neither the House of Representatives Republican appropriators’ proposal to tackle the deficit starting in 2011 nor Obama’s new budget for next year tackles the real challenge of entitlements. Instead, both pick and choose the discretionary cuts they want to start with.

From my mind, we should accept the cuts from both sides, then go after the entitlements.

Astronauts simulate Mars landing

Astronauts on the Russian Mars500 simulated Mars mission simulated a Mars landing on Saturday. Key quote:

Three astronauts on the Mars500 simulated mission will make a simulated walk on the Mars “surface” Monday. After working 30 days on the simulated planet, the crew will then embark on a simulated 240-day return trip to Earth. Officials said the 520-day Mars500 mission is designed to test how humans cope with the physical and mental stresses of a long space flight.

White nose found in North Caroina

The fungus that has been killing cave hibernating bats throughout the eastern United States has now been found in North Carolina.

In a related note, the National Speleological Society has sent a letter to the U.S. Fish and Wildlife Service, expressing its concern over what many cavers believe has been the government’s indiscriminate cave closure policies in response to the white nose fungus. Key quote:

Our members have been extremely patient and collaborative throughout the entire [white nose syndrome] situation, but the frustration and discontent has been growing. We are hearing more and more from across the country that cavers do not want to participate in collaborative efforts – in much part due to management decisions by federal and state agencies that are perceived by knowledgeable and conservation-minded cavers to be over-reactive, based on sometimes slim science, speculation and political pressure, and insensitive to broader science and conservation issues. That result would not be beneficial to anyone.

The Sun’s continuing wimpiness

Get those winter coats out of storage! Yesterday NOAA’s Space Weather Prediction Center published its monthly update of the Sun’s sunspot cycle. I’ve posted the newest graph below, showing the continuing slow rise in sunspots (blue/black lines) in comparison with the consensis prediction made by the solar science community in May 2009 (red line).

Though the sunspot count made a slight recovery in January, it was not enough to make up for the plunge in December. Essentially, the Sun continues to act like a sleepy kitten that really doesn’t want to wake up. This suggests that even the newest and wimpiest prediction for the next solar maximum, from solar scientists at the Marshall Space Flight Center, is still overstating the Sun’s upcoming sunspot activity.

In the past a wimpy Sun has been linked to cold weather, for reasons that scientists as yet don’t quiet understand. And this next solar maximum continues to look like the wimpiest in more than 200 years (see the graph on this page)!

January sunspot graph

A fresh perspective from the new chairman of the House subcommittee that oversees National Science Foundation (NSF), NASA, the Department of Energy, and the Department of Commerce

Mo Brooks (R-Alabama), the new chairman of the House subcommittee that oversees National Science Foundation (NSF), NASA, the Department of Energy, and the Department of Commerce, gives his perspective on science and the budget. Two quotes of interest:

Q: Do you believe that federal research should be exempt from a rollback in federal spending to 2008 levels?
Brooks: I would love for that to happen. But we just don’t have the money. … We have no choice but to look at everything. If we don’t balance our budget over a short period of time, the federal government is going to collapse and there won’t be money for any of these things. So if we’re going to save money for research and advancement in science, we’re going to have to get our house in order now.

Q: Do you think the government should increase funding on research once things turn around?
Brooks: Do you mean if the budgetary situation turns around? I don’t see that happening in the next 4 to 5 years. We’ve got a $1.5 trillion budget deficit, and Admiral Mullen, head of the Joint Chiefs of Staff, has declared it the number one security threat to the country. And if our creditors would cut us off, there would be zero money for national defense or NSF or anything else.

Note how the interviewer, from Science, can’t seem to get his head around the idea of budget cuts.

Q: Is human activity causing global warming?
Brooks: That’s a difficult question to answer because I’ve talked to scientists on both sides of the fence, especially at the University of Alabama at Huntsville. Some say yes, and some say no. I’m also old enough to remember when the same left-wing part of our society was creating a global cooling scare in order to generate funds for their pet projects. So 30-some years ago, the big scare was global cooling, and once they drained the government, they shifted to global warming. So I’m approaching the issue with a healthy degree of skepticism. If the evidence is there to prove it, then so be it.

The underground Moon

More images of lunar cave pits have been posted by the scientists of Lunar Reconnaissance Orbiter (LRO). They have also published their first paper [pdf] about these cave pits for the 2011 Lunar and Planetary Science Conference taking place in March. The paper summarizes, with images, what is know about the three pits on the Moon that have each been imaged a number of times at different angles and lighting situations.

Mare Tranquilitatus
» Read more

1 259 260 261 262 263 278