Science & TechnologyS


Rocket

Space Defense Program Gets Extra Funding

While wrestling with wars in Iraq and Afghanistan, the Pentagon is preparing weapons to fight the next battle from space, according to information in the 621-page, House-Senate conference report on the fiscal 2008 defense appropriations bill.

Question

Why quantum physicists talk like mystics

One of the most difficult problems confronting psychics, mystics, visionaries or clairvoyants, is how to make what they see real to ordinary people who do not and cannot see it the same way they do.

And since they are in the minority, their views are often ignored or disregarded by the majority, which constitutes the mainstream opinion.

What psychics and mystics see as the real nature of the physical universe lies outside the purview of classical or orthodox science. And, because of this, it is considered to be unreal or non-existent.

To ordinary people, anyone who insists that there are such things as psychic or paranormal powers or phenomena must surely be hallucinating or imagining things.

Bizarro Earth

Double Trouble: What Really Killed the Dinosaurs

Instead of being driven to extinction by death from above, dinosaurs might have ultimately been doomed by death from below in the form of monumental volcanic eruptions.

The suggestion is based on new research that is part of a growing body of evidence indicating a space rock alone did not wipe out the giant reptiles.

©Nicolle Rager, National Science Foundation
New research suggests that volcanoes that erupted between 63 million to 67 million years ago may have contributed to a mass dinosaur extinction.

Clock

Oldest Temple, Mural in the Americas Found in Peru

What may be the oldest documented mural in the Americas has been found inside a 4,000-year-old temple near the Peruvian coast, researchers reported yesterday.

The discovery, made by Peruvian archaeologist Walter Alva in a looted site known as Ventarrón, is located in Peru's Lambayeque valley, some 500 miles (804 kilometers) from the capital, Lima.

Magic Wand

Alien Life Can Survive Trip to Earth, Space Test Shows

We could have alien origins, say scientists who sent fossilized microscopic life-forms into space and back inside an artificial meteorite.

The researchers attached the baseball-size rock to the outside of the European Space Agency's Foton M3 spacecraft to test whether biological material could survive the round-trip journey.

Sculpted from stone from the Orkney Islands in northern Scotland, the rock contained fossilized microbes and the molecular signatures of microbes.

Coffee

Pre-dating the love of chocolate

Chemical and archaeological evidence has pushed back the earliest known use of cacao, the key ingredient of chocolate, by 500 years.

The chemical compound, theobromine, which only occurs in the cacao plant, has been found on pottery vessels dating back to as early as 1000 BC.

Experts say the vessels were used to serve a fermented cacao drink that was made from the sweet pulp of the plant.

The vessels were unearthed at sites in Puerto Escondido, Honduras.

Ark

Probing Question: Are Asteroids a Threat to Earth?



©NASA
Artist's concept of a catastrophic asteroid impact

Hollywood thrillers such as Deep Impact helped to jump-start America's interest in knowing what our "deflection strategy" would be if a giant asteroid was on a potentially catastrophic collision course with Earth.

Telescope

"Holming" in on a really bright comet

Stargazers will be in seventh heaven when one of the most spectacular sights in the night sky becomes visible above Paisley.

And, to make the outlook even brighter, Buddies won't even need binoculars or telescopes to identify the celestial wanderer.

They'll see it all with the naked eye.

©Sky and Telescope

Key

The key to unlocking the secret of highly specific DNAzyme catalysis

Using an extremely sensitive measurement technique, researchers at the University of Illinois have found clear evidence that a lead-specific DNAzyme uses the "lock and key" reaction mechanism. In the presence of zinc or magnesium, however, the same DNAzyme uses the "induced fit" reaction mechanism, similar to that used by ribozymes.

"The lock and key mechanism explains why this particular lead-specific DNAzyme makes such a sensitive and selective sensor," said U. of I. chemistry professor Yi Lu, a corresponding author of a paper accepted for publication in Nature Chemical Biology, and posted on the journal's Web site.

"Understanding the relationship between conformational change and reaction is important in obtaining deeper insight into how DNAzymes work and for designing more efficient sensors," said Lu, who also is a researcher in the university's department of biochemistry, the Beckman Institute, and the Center of Advanced Materials for the Purification of Water with Systems.

Rocket

Russia, India to join in moon mission

The leaders of veteran allies Russia and India agreed Monday to launch a joint unmanned mission to the moon during Kremlin talks on boosting military and trade ties.

Indian Prime Minister Manmohan Singh announced the plan after talks with Russian President Vladimir Putin during which the two discussed projects for a more than twofold increase in trade by the end of the decade.

"The symbol of our cooperation is the joint agreement to send an unpiloted space ship to the moon for scientific investigation," Singh said in comments broadcast on Russian state television after the meeting.