Sentences with phrase «nitrogen ice at»

They also looked at whether craters made by the comets hitting the surface could excavate enough nitrogen — but that would require a very deep layer of nitrogen ice at the surface, which is not proven.

If Pluto were a completely smooth sphere, it would have either a permanent swath of nitrogen ice at the equator or seasonal snow caps at its poles.

Not exact matches

On Pluto, a slurry of nitrogen and water ice melted by subsurface heat stands in for lava, the team suggests, freezing solid once it is exposed at the surface.

The new images, at resolutions of about 80 meters per pixel, show a striking shoreline, where smooth plains of nitrogen ice from Pluto's «heart» rub up against water ice mountains several kilometers high.

The jumbled - up rubble at the base of the ice mountains helps confirm team members» theories that the mountains are, in fact, giant icebergs that have moved around on more plastic layers of nitrogen ice below.

Using sediment gathered from the ocean floor in different areas of the world, the researchers were able to confirm that as the ice sheets started melting and the climate warmed up at the end of the last ice age, 18,000 years ago, the marine nitrogen cycle started to accelerate.

Charon is dark gray and rich in water ice, because it is not massive enough to hold onto the brighter methane and nitrogen ices seen on Pluto — except, maybe, at Charon's pole.

A McGill - led international research team has now completed the first global study of changes that occurred in a crucial component of ocean chemistry, the nitrogen cycle, at the end of the last ice age.

Data reported by NASA's New Horizons New Horizons mission to the Pluto system shows unusual terrain in this region, which features a large deposit of nitrogen ice with a pattern of polygons that are thickest at their centers and dip at their edges.

Both water and nitrogen are solids at Pluto's temperatures, but the nitrogen ice is structurally weak and has a low viscosity that allows it to deform and flow like a fluid, while the water ice has a very high viscosity and can form tall, hard mountains, Trowbridge said.

Engineer Barbara Wyslouzil of Ohio State University and colleagues made the cubed ice by shooting nitrogen and water vapor through nozzles at supersonic speeds.

There is probably water - ice at depth on Pluto, but the surface ice is a mixture of frozen methane, ethane, carbon monoxide and nitrogen.

Qiang Wei at Peking University in China and his colleagues calculated that nitrogen ice, which is softer than water ice, on Pluto's plains may flow like molasses to fill in craters as they form.

Instead, they appear bright white, more like the regions of Pluto covered in nitrogen ice, according to work presented at an American Astronomical Society meeting on 17 October by Will Grundy at the Lowell Observatory and Orkan M. Umurhan at the SETI Institute.

A team of Buck scientists will be on hand to make instant liquid nitrogen ice cream — a major hit at last year's event.

Now, if you have all this very cold, nearly freezing water surrounding these ice caps, sucking up carbon dioxide out of the polar atmosphere, at nearly the highest possible rate, 30 times faster than oxygen, and 70 times faster than nitrogen, doesn't it stand to reason that the air that remains might just have a lot less carbon dioxide in it than the atmosphere across the rest of the planet?

Two chefs combine foods in unusual ways in this extension of their cooking school, where the waiters know as much about the food as the chefs (a decided advantage, as some of the items may need explaining)-- fillet cooked in a dishwasher, lamb shank cooked slowly in an electric blanket, or liquid nitrogen boiled ice - cream (at your table).

To make the link, Hastings, with Julia Jarvis and Eric Steig from the Department of Earth and Space Sciences at the University of Washington, examined at high resolution for the first time two isotopes of nitrogen found in nitrates in a Greenland ice core.

Scientific confidence of the occurrence of climate change include, for example, that over at least the last 50 years there have been increases in the atmospheric concentration of CO2; increased nitrogen and soot (black carbon) deposition; changes in the surface heat and moisture fluxes over land; increases in lower tropospheric and upper ocean temperatures and ocean heat content; the elevation of sea level; and a large decrease in summer Arctic sea ice coverage and a modest increase in Antarctic sea ice coverage.

Afterwards, we popped over to Noosa for some nitrogen ice - cream on Hastings Street while we watched the beautiful people swagger past, then we went for a swim at the gorgeous beach and tucked into another burger, this time at the Noosa Life Saving Club.