20 physicists from four research institutions disclosed that they had created two tiny specks of matter -- an electron and its antimatter counterpart, a positron -- by colliding two ultrapowerful beams of radiation.
The possibility of doing something like this was suggested in 1934 by two American physicists, Dr. Gregory Breit and Dr. John A. Wheeler. But more than six decades passed before any laboratory could pump enough power into colliding beams of radiation to conjure up matter from nothingness. The Stanford accelerator finally provided enough energy to do it.
Genetically modified canola plants have been found growing wild in the U.S., in some cases far from fields of cultivated genetically modified canola.
Results reported today at a meeting of the Ecological Society of America in Pittsburgh, Penn., suggest that the plants are reproducing on their own, making this the first report of an established population of GM organisms in the wild in the U.S., according to the team.
The not-so-romantically named (101955) 1999 RQ36 -- discovered in 1999 -- measures approximately 510 meters in diameter and is classified as an Apollo asteroid. Apollo asteroids pose a threat to our planet as they routinely cross Earth's orbit. With a one-in-a-thousand chance of 1999 RQ36 hitting Earth -- with half of this probability indicating a 2182 impact -- the threat might not sound too acute.
South African wildlife experts are calling for urgent action against poachers after the last female rhinoceros in a popular game reserve near Johannesburg bled to death after having its horn hacked off.
Wildlife officials say poaching for the prized horns has now reached an all-time high. "Last year, 129 rhinos were killed for their horns in South Africa. This year, we have already had 136 deaths," said Japie Mostert, chief game ranger at the 1,500-hectare Krugersdorp game reserve.
From NPR - New research suggests that misinformed people rarely change their minds when presented with the facts -- and often become even more attached to their beliefs. The finding raises questions about a key principle of a strong democracy: that a well-informed electorate is best.
The not-so-romantically named (101955) 1999 RQ36 -- discovered in 1999 -- measures approximately 510 meters in diameter and is classified as an Apollo asteroid. Apollo asteroids pose a threat to our planet as they routinely cross Earth's orbit. 