One of the great mysteries of late medieval history is why did the Norse, who had established successful settlements in southern Greenland in 985, abandon them in the early 15th century? The consensus view has long been that ...
Archaeology
Mar 23, 2022
2
1271
Martian colonists could use an innovative new technique to harvest energy from carbon dioxide thanks to research pioneered at Northumbria University, Newcastle.
Engineering
Mar 5, 2015
18
3389
Cube-shaped snow, icy landscapes, and frost are all part of the Red Planet's coldest season.
Planetary Sciences
Dec 23, 2022
2
305
Mixing a little dry ice and a simple industrial process cheaply mass-produces high-quality graphene nanosheets, researchers in South Korea and Case Western Reserve University report.
Nanomaterials
Mar 26, 2012
22
0
Extreme heat this year has triggered wildfires, drought and melting glaciers. Less expectedly, it's also revealed some weird and dark things about our past—shipwrecks, corpses, ghost villages, ornamental gardens and ancient ...
Archaeology
Aug 15, 2022
0
230
(PhysOrg.com) -- Scientists at Northern Illinois University say they have discovered a simple method for producing high yields of graphene, a highly touted carbon nanostructure that some believe could replace silicon as the ...
Nanomaterials
Jun 20, 2011
13
0
(Phys.org) —NASA research indicates hunks of frozen carbon dioxide—dry ice—may glide down some Martian sand dunes on cushions of gas similar to miniature hovercraft, plowing furrows as they go.
Space Exploration
Jun 11, 2013
1
1
Months after scientists announced "the strongest evidence yet" of liquid water on Mars, a study Monday said there was none at least in the valleys carved into numerous Red Planet slopes.
Space Exploration
Dec 21, 2015
8
1089
New research led by the University of Massachusetts Amherst definitively resolves a long-standing discrepancy in the geologic record that pitted studies of marine ice-sheet behavior against those that reconstructed past conditions ...
Earth Sciences
Feb 14, 2022
3
156
Erosion-carved troughs that grow and branch during multiple Martian years may be infant versions of larger features known as Martian "spiders," which are radially patterned channels found only in the south polar region of ...
Space Exploration
Dec 20, 2016
0
245
