Tag: science
The $23-Million Textbook
One of the largest statues of an Egyptian pharaoh unearthed in Luxor
One of the largest statues of an Egyptian pharaoh ever found has been unearthed in Luxor.
SETI suspends operations
Out of funds, SETI has suspended operations while it looks for new investors.
Japan’s tsunami waves top historic heights
Japan’s tsunami in March produced the largest waves in history.
Some waves grew to more than 100 feet high, breaking historic records, as they squeezed between fingers of land surrounding port towns.
To me, however, this is the biggest takeaway:
Although terrible, the preliminary estimate also finds a better-than 92% survival rate for people living in coastal towns hit by the waves, Bourgeois says. “In that sense, given the magnitude of the unexpectedly large earthquake, things could have been even worse,” she says.
World’s smelliest flower opens for the first time in 75 years
The world’s smelliest flower has bloomed for the first time in 75 years.
U.S. Forest Service closes more caves
An excellent editorial on the U.S. Forest Service’s decision to shutter more caves. Key quote:
The closures . . . seem like an overreaching government solution to a problem that doesn’t exist. The Forest Service could certainly be spending its time in more constructive ways – like taking public comment on the “emergency” closures, which are set to start May 1.
Observations of Comet Hale-Bopp at 30 AU
In a paper published tonight on the Los Alamos astro-ph preprint website, astronomers described new observations of Comet Hale-Bopp at a distance of 30 astronomical units, or 2.8 billion miles, from the sun. Their conclusions:
- These observations were the most distant detection of any known comet.
- The comet’s starlike appearance and its drop in brightness since the last observations suggest that the comet has finally ceased, or is about to cease, all activity, and that they are now looking directly at the comet’s nucleus instead of the coma cloud surrounding it.
- Nonetheless, the comet is brighter than expected, which also suggests that a thin layer of new ice covers its surface and thus increases its albedo.
To quote the paper, “Observing Hale-Bopp in a completely frozen state would be extremely important because a thick coma was constantly present during the entire appariation [Ed. the fly-by of the Sun]. The coma obscured the nucleus which was not observed directly. Lack photometric data of the bared nucleus, its size — one of the most important input parameter in activity models — remains uncertain.”
Will fewer humans in space lead to more robot explorers?
Eric Berger at the Houston Chronicle asks: Will fewer humans in space lead to more robot explorers?
In a word, no. In the past fifty years, every time the budget of the manned space program has been cut, the unmanned program shrank as well. And every time the budget of manned space grew, so did the budget for unmanned missions.
Harvard Researcher Banned From Teaching Next Year
A Harvard researcher, under investigation for research misconduct, has been banned from teaching next year.
Scientists find previously unknown deposits of CO2 on Mars
Scientists find a gigantic and previously unknown deposit of CO2 at Mars’ south pole.
“We already knew there is a small perennial cap of carbon-dioxide ice on top of the water ice there, but this buried deposit has about 30 times more dry ice than previously estimated,” said Roger Phillips of Southwest Research Institute in Boulder, Colo. Phillips is deputy team leader for the Mars Reconnaissance Orbiter’s Shallow Radar instrument and lead author of the report. . . . “When you include this buried deposit, Martian carbon dioxide right now is roughly half frozen and half in the atmosphere, but at other times it can be nearly all frozen or nearly all in the atmosphere,” Phillips said.
What this discovery means is that, depending on Mars’ orbital circumstances, its atmosphere can sometimes be dense enough for liquid water to flow on its surface.
“Space beer,” one giant leap for mankind
“For example, many metals burn more easily in reduced gravity, liquids behave differently, both of which have important implications for safety and the way machinery and equipment operate in spacecraft and space stations. The beer experiments assisted in determining the correct level of carbonation, so that it can in the future be appropriately enjoyed by humans in reduced gravity,”