Evidence Found for Planet-Cooling Asteroid 12,900 Years Ago

The dust refuses to settle on a debate about whether asteroid impacts caused one of Earth’s most famous cold snaps 12,900 years ago.

The latest evidence in the contentious discussion comes in the form of pieces of bedrock from Quebec, Canada, that seem to have been blasted out as far as Pennsylvania. “I’d say there’s evidence of an impact happening, for sure,” says Mukul Sharma, an isotope geochemist at Dartmouth College in Hanover, New Hampshire, and co-author of a study published this week in Proceedings of the National Academy of Sciences.

New Evidence about Asteroid that Killed the Dinosaurs

A new look at conditions after a Manhattan-sized asteroid slammed into a region of Mexico in the dinosaur days indicates the event could have triggered a global firestorm that would have burned every twig, bush and tree on Earth and led to the extinction of 80 percent of all Earth’s species, says a new University of Colorado Boulder study.

Led by Douglas Robertson of the Cooperative Institute for Research in Environmental Sciences, or CIRES, the team used models that show the collision would have vaporized huge amounts of rock that were then blown high above Earth’s atmosphere. The re-entering ejected material would have heated the upper atmosphere enough to glow red for several hours at roughly 2,700 degrees Fahrenheit (1,500 degrees Celsius) killing every living thing not sheltered underground or underwater.

Cosmic crash 2022: Space probes will smash into asteroid in nine years

By Miriam Kramer 

Cosmic crash 2022: American and European scientists are planning to crash a spacecraft into a nearby asteroid in 2022 to analyze the interior of the cosmic rock.

Scientists in Europe and the United States are moving forward with plans to intentionally smash a spacecraft into a huge nearby asteroid in 2022 to see inside the space rock.

Will NASA Announce Plans to Snag an Asteroid and Fly It to Earth?

By Adam Mann

When the Obama administration’s 2014 federal budget gets released in early April, it might include a curious item: a $100 million request for NASA to conduct a mission to capture an asteroid and bring it back to Earth.

This idea comes from an article published March 28 in Aviation Week and Space Technology, which reports on the space industry. The plan would identify a small asteroid, grab it with a robotic spacecraft, and tug it to the vicinity of our planet, perhaps somewhere near the moon. Such a mission was the subject of a two-day meeting of scientists and engineers at Caltech organized by the Keck Institute for Space Studies in 2011.

O rachetă NASA va lovi un asteroid în 2022. Proiectul costă 150 de milioane de dolari

Oamenii de ştiinţă din Europa şi SUA vor investi 150 de milioane de dolari pentru a construi o rachetă care ar urma să lovească un asteroid în 2022, scrie esa.int.

Scopul misiunii NASA este de a afla cum poate fi modificată traiectoria unui asteroid care se îndreaptă spre Pământ.

Racheta, care se va numi DART, va încerca să lovească unul dintre cei doi asteroizi din sistemul binar Didymos, aflat în sistemul nostru solar, şi să-i modifice traiectoria.

Did a Comet Really Chill and Kill Clovis Culture?

A comet crashing into the Earth some 13,000 years ago was thought to have spelled doom to a group of early North American people, and possibly the extinction of ice age beasts in the region.

But the space rock was wrongly accused, according to a group of 16 scientists in fields ranging from archaeology to crystallography to physics, who have offered counterevidence to the existence of such a collision.

Incoming! Tunguska-class bolide to miss Earth by just 22,500km on 15 February 2013

An asteroid the size of a city block is due to come whizzing past Earth closer than any other of its size in recorded history in February next year, according to astronomers.

The asteroid, referred to as 2012 DA14, has a diameter of approximately 45m and an estimated mass of 130,000 tonnes. It was discovered at the start of 2012 and is set to travel between the Earth and our geostationary communication satellites on 15 February 2013. At a distance of just 22,500km this will be the closest asteroid 'fly by' in recorded history.

Mysterious Case of Asteroid Oljato's Magnetic Disturbance

Back in the 1980s, the arrival of asteroid 2201 Oljato inside the orbit of Venus heralded a flurry of magnetic activity. Now, results from ESA's Venus Express spacecraft suggest that Oljato has lost its magnetic mojo. Dr. Christopher Russell will present an explanation for Oljato's strange behavior at the European Planetary Science Congress in Madrid on Tuesday 25th September.

Oljato orbits the Sun once every 3.2 years. During its lifetime, NASA's Pioneer Venus Orbiter observed three passages of Oljato between Venus and the Sun. Each time, there was a marked increase in the region of unusual magnetic peaks known as Interplanetary Field Enhancements (IFEs), both ahead and behind the asteroid.

Apophis Asteroid Strike Practically Nil – Scientist

Scientists with the Institute of Astronomy of the Russian Academy of Sciences have recalculated the path of a large asteroid, Apophis; the refined data indicates a significantly low likelihood of a hazardous encounter with Earth, the institute’s leading research fellow Viktor Shor said on Wednesday.

The Apophis asteroid is approximately the size of two-and-a-half football fields; its orbit is slightly offset to that of Earth's. Discovered in 2004, astronomers have determined that the asteroid will make a very close flyby in 2029 and might even hit Earth.

The antediluvian world

Although various ancient traditions refer to a lost antediluvian world, the one that stands out is the tradition in the early chapters of Genesis, because of its geographical detail, its monotheism (which has been shown to predate polytheism) and its historical (rather than epic) style of narration. These chapters describe a world very different from our own, either because the world really was different or because a later pre-scientific culture speculated about it in error. So what source of information did they draw upon?