I once worked on a drill rig for a gold mining company and I remember at times we had difficulty getting down a mere 2,500 feet for samples. I can't even imagine going down 7 miles! picked by Phildo 3 years ago

A doctor in rural Australia used a household drill to bore a hole into the skull of a boy with a severe head injury, saving his life. picked by arsphidius 6 months ago

A heart donated for transplant was beating inside a third owner last night. The donor heart was first given to a patient several weeks ago. But a week after the transplant, the patient died of unrelated causes. So surgeons removed the heart and transplanted it again. picked by AutumnLotus 3 years ago

Trepanation, the ancient practice of drilling a hole in your skull to relieve pressure on the brain, is now being studied as a possible treatment for dementia. picked by bornbad 5 months ago

Gouged into the harsh landscape of Western Australia, the Kalgoorlie-Boulder Super Pit is the Australian continent’s largest open cut gold mine – a gigantic pockmark scraped out of the face of the earth over two miles long, a mile wide, and getting on for half a mile deep. It’s huge. And it’s growing. picked by bornbad 6 months ago

Sony's PlayStation game business stopped losing money for the first time in six quarters, helping the company to post a 25.2 percent jump in October-December profit. picked by punthe 2 years ago

Astronomers are getting a close-up look at a cosmic eating machine: a spinning black hole that devours the mass equivalent of two Earths per hour, verging on the limit of its feeding ability. picked by bingo 6 months ago

This is the Ozone Hole Watch web site, where you can check on the latest status of the ozone layer over the South Pole. Satellite instruments monitor the ozone layer, and data is used to create the images that depict the amount of ozone. picked by AutumnLotus 2 years ago

Astronomers have used two different telescopes simultaneously to study the violent flares from the supermassive black hole in the centre of the Milky Way. They have detected outbursts from this region, known as Sagittarius A*, which reveal material being stretched out as it orbits in the intense gravity close to the central black hole. picked by AutumnLotus 1 year ago

Punch Hole Clouds may appear as a circular or oval holes in a layer of supercooled clouds; sometimes they assume a form of a perfect circle and persist for quite a long time, drifting together with the cloud layer. One explanation seems to blame the air traffic (the jet contrail intersections) combined with a thermal inversion (a circular motion of a rising warm air). picked by AutumnLotus 6 months ago

An expansion of sea ice around Antarctica is linked to a hole in the ozone layer high in the atmosphere, according to a study that helps clear up a mystery about global warming.

The findings explain an apparent contradiction between a thaw of ice in the Arctic to record lows and an increase in ice around Antarctica over the past 30 years. picked by AutumnLotus 7 months ago

An electromagnetic black hole has been created for the first time. It works at microwave frequencies but it is expected to be able to eventually catch visible light as well. This would open up new possibilities for solar power cells. picked by 2manyusernames 1 month ago

Stop it.
Find out where you'd come out if you dug a hole from your neighborhood on down to the other side of the earth. picked by gnikgnok 2 years ago

Bored women spend nearly half (47 per cent) of their free time surfing the web, a higher proportion than workers, the unemployed and even students. picked by AutumnLotus 12 months ago

In the first experiments able to mimic the crushing, searing conditions found in Earth’s lower mantle, and simultaneously probe tell-tale properties of iron, scientists have discovered that material there behaves very differently than predicted by models. The research also points to the likelihood of a new zone deep in the Earth. picked by AutumnLotus 2 years ago

From the dramatic Horsehead Nebula to the mysterious glowing Bow of Orion, a series of unforgettable images have been entered into the Astronomy Photographer of the Year 2009 competition. picked by kakana 3 months ago

A series of "rephotographs" of over 100 historic landscape sites in the American West presenting 19th-century survey photographs, photographed again in the 70s, then again in the '90s picked by 2manyusernames 2 years ago