Archive: 09/13/2011

When plants go polyploid

(PhysOrg.com) -- Plant lineages with multiple copies of their genetic information face higher extinction rates than their relatives, researchers report in Science magazine.

Sep 13, 2011
5 / 5 (3) 8 | with audio podcast

Space image: New supernova remnant lights up

(PhysOrg.com) -- Using the Hubble Space Telescope, astronomers are witnessing the unprecedented transition of a supernova to a supernova remnant, where light from an exploding star in a neighboring galaxy, ...

Sep 13, 2011
4.9 / 5 (10) 12

Non-native earthworms are damaging hardwood forests

Think of earthworms and a few things come to mind: they make great bait for fishing, they aerate the soil, and they're an excellent addition to a compost pile. But what a lot of people don't know is many earthworms are actually ...

Sep 13, 2011
not rated yet 0

Herschel paints new story of galaxy evolution

(PhysOrg.com) -- ESA's Herschel infrared space observatory has discovered that galaxies do not need to collide with each other to drive vigorous star birth. The finding overturns this long-held assumption ...

Sep 13, 2011
5 / 5 (8) 5 | with audio podcast

Space mission tells of Antarctic melt

(PhysOrg.com) -- A team of researchers from The Australian National University has been selected from a competitive field to participate in NASA’s Gravity Recovery and Climate Experiment (GRACE) Science ...

Sep 13, 2011
5 / 5 (5) 3

Why are orchids so successful?

In terms of diversity, orchids are one of the most successful groups of flowering plants, with over 22,000 species. Both pollinating animals and mycorrhizal fungi are believed to have been important in the ...

Sep 13, 2011
3 / 5 (1) 0