Science & TechnologyS


Telescope

UK plan to track asteroid threat

UK space scientists and engineers have designed a mission to investigate a potentially hazardous asteroid.

The 300m-wide (980ft) rock, known as Apophis, will fly past Earth in April 2029 at a distance that is closer than many communications satellites.

Astrium, based in Stevenage, Herts, wants a probe to track the asteroid so its orbit can be better understood.

©Astrium
Under the proposal Apex would rendezvous with Apophis in January 2014 and spend three years sending data back to scientists and engineers on Earth. From the data, orbit modelling would enable an accurate prediction of the risk of collision with our planet.

Telescope

Russia Space Agency plans protecting Earth from asteroids

The Russian Federal Space Agency plans creating a system of anti-asteroid protection after 2026, the agency's director Anatoly Perminov told a news conference on Friday.

Telescope

Traced: The asteroid breakup that wiped out the dinosaurs

The extinction of the dinosaurs 65 million years ago can be traced to a collision between two monster rocks in the asteroid belt nearly 100 million years earlier, scientists report on Wednesday.

©Southwest Research Institute
Computer modeling shows that the parent object of asteroid (298) Baptistina, which was approximately 170-kilometres in diameter with characteristics similar to carbonaceous chondrite meteorites, was disrupted 160 million years ago when it was hit by another asteroid estimated to be 60-kilometres in diameter (L) .The extinction of the dinosaurs 65 million years ago can be traced to a collision between two monster rocks in the asteroid belt nearly 100 million years earlier, scientists report. The two pictures on the right show remnants of the collision impacting the Earth and Moon. Image obtained from Southwest Research Institute.

Bulb

Pig study sheds new light on the colonisation of Europe by early farmers

The earliest domesticated pigs in Europe, which many archaeologists believed to be descended from European wild boar, were actually introduced from the Middle East by Stone Age farmers, new research suggests.

The research by an international team led by archaeologists at Durham University, which is published today in the academic journal Proceedings of the National Academies of Sciences USA, analysed mitochondrial DNA from ancient and modern pig remains. Its findings also suggest that the migration of an expanding Middle Eastern population, who brought their 'farming package' of domesticated plants, animals and distinctive pottery styles with them, actually 'kickstarted' the local domestication of the European wild boar.

While archaeologists already know that agriculture began about 12,000 years ago in the central and western parts of the Middle East, spreading rapidly across Europe between 6,800 - 4000BC, many outstanding questions remain about the mechanisms of just how it spread. This research sheds new and important light on the actual process of the establishment of farming in Europe.

Telescope

World's biggest digital camera to look for Earth-shattering asteroids

The world's largest digital camera has been installed on a new telescope designed to hunt for potentially dangerous asteroids.

People

Persistence of Myths Could Alter Public Policy Approach

The federal Centers for Disease Control and Prevention recently issued a flier to combat myths about the flu vaccine. It recited various commonly held views and labeled them either "true" or "false." Among those identified as false were statements such as "The side effects are worse than the flu" and "Only older people need flu vaccine."

Comment: True

Magnify

Archaeologists discover ancient beehives

Archaeologists digging in northern Israel have discovered evidence of a 3,000-year-old beekeeping industry, including remnants of ancient honeycombs, beeswax and what they believe are the oldest intact beehives ever found.

The findings in the ruins of the city of Rehov this summer include 30 intact hives dating to around 900 B.C., archaeologist Amihai Mazar of Jerusalem's Hebrew University told The Associated Press. He said it offers unique evidence that an advanced honey industry existed in the Holy Land at the time of the Bible.

Comment: For a good understanding of the Bible and what the real history of the Israelite people were in the times around 900 BC, read the book by Laura Knight-Jadczyk: The Secret History of the World


Video

"Lucky Camera" Takes Sharpest Ever Images of Stars (And it's 50,000 Times Cheaper than Hubble)

A team of astronomers led by Cambridge University have taken pictures of the stars that are sharper than anything produced by the Hubble telescope, at 50 thousandths of the cost.

The researchers, from the University of Cambridge and the California Institute of Technology (Caltech), used a technique called "Lucky Imaging" to take the most detailed pictures of stars and nebulae ever produced - using a camera based on the ground.

©NASA
Standard telescope view

Images from ground-based telescopes are usually blurred by the Earth's atmosphere - the same effect that makes the stars appear to twinkle when we look at them with the naked eye.

The Cambridge/Caltech team, however, surpassed the quality of images taken from space by using a high-speed camera to take numerous images of the same stars at a rate of 20 frames per second. Because of fluctuations in the atmosphere, some of these were less smeared than others. The team then used computer software to choose the best images, and these were combined to create pictures far sharper than anything that has been taken from space.

Rocket

Rekindled Space Race? Russians Set Sights on Moon, Mars

Following hard after forays to claim the North Pole as its Soyuznational territory, Russia policymakers are setting their sights on destinations decidedly farther afield. Next stop: the Moon.

Question

Martian Enigma: Strange Martian feature not a 'bottomless' cave but a deep pit

An extremely dark feature on Mars is probably just a pit - not the entrance to a deep cavern that future astronauts could call home, a new image reveals.

The 150- by 157-metre feature was first noticed in an image taken by NASA's Mars Reconnaissance Orbiter on 5 May 2007 using a camera called the High Resolution Imaging Science Experiment (HiRISE).

Viewed from directly overhead, the dark spot showed no evidence of walls or a floor, leading some HiRISE scientists to suspect it was the opening to a cavern.