Posts treating: "earth"
Wednesday, 17 December 2014
NASA’s Suomi Satellite has an amazing sensor that can see the Earth at night very well. The pics below are a comparison of normal city lights from space, and the green shows the added lights from all the holiday decorations! Pretty cool ay! NASA has a video here and the pics of our region are below. Here are further details from NASA: With a new look at daily data from
GeoLog-The official blog of the European Geosciences Union [2014-12-15 13:00:37]
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(20 visits) US,CN,KM,FI
Research takes Earth scientists to the four corners of globe. So, if you happen to have a keen interest in photography and find yourself doing research at high latitudes, chances are you’ll get lucky and photograph the dancing night lights: aurora (or northern lights), arguably one of the planet’s most breath taking natural phenomenon. That is exactly the position Matias Takala, a researcher at the Finnish Meteorological Institute (FMI), was in when he was able to take this incredible [...]
“For a thousand years in your sight are but as yesterday when it is past, or as a watch in the night.” — Psalm 90:4 (ESV) Christians disagree with one another about the age of the Earth and the universe. Some Christians insist that the only possible way to interpret the opening chapters of Genesis
So common, yet far out of sight, Mineralogists longed for a bite. Formed deep inside, Or when rocks collide, At long last, a name: bridgmanite! __________________________________________________________ Further reading: Discovery of bridgmanite, the most abundant mineral in Earth, in a shocked meteorite, Tschauner et al. (2014) Science Earth’s Most Abundant Mineral Finally Gets a
Aerosol particles come in lots of different flavours and one of their most important properties is how they deal with incoming sunlight. Some are rather unwelcoming and send sunlight back to whence it came (space), which leads to a cooling of the atmosphere as the sunlight doesn’t reach the surface of the Earth. Others offer sunlight a warm(ing) embrace and absorb it, which heats up the atmosphere. The relative amount of absorbing aerosol compared to the total aerosol burden in the [...]
It was July 2011 when the Martian meteorite Tissint fell to Earth.
An international research team has found organic carbon in rock sections
of the meteorite and precisely unraveled its petrographic settings. The
new results are presented in the periodical “Meteoritic and Planetary
Science (MAPS)”. There is persuasive evidence that the carbon originated
on Mars. The scientists
This month, Mars remains in the southwest at dusk this month as it moves through Capricornus. Mars continues to fade a little each night as Earth continues to leave it farther behind. Jupiter is now high in the south at … Continue reading
How to tell if the loaf of bread in your oven is cooked? You can see the outside is nicely browned, but you can’t see the middle – is it doughy still? Give it a tap and listen. If it sounds … Continue reading
By burning fossil fuels for heating, electricity, transportation and other purposes, humans add CO2 to the atmosphere. Yet, by comparing ways in which the Earth’s temperature, CO2 concentration, sea level and ice sheets have changed in the past, we are able to learn valuable lessons about the climate system of today and
The next story up in the Geology Though Literature thread is A Connecticut Yankee in King Arthur's Court by Mark Twain.This story is essentially a time travel story so there are several aspects of "historical geology" in play for the book. The first part involves the occurrence of a solar eclipse."I knew that the only total eclipse of the sun in the first half of the sixth century occurred on the 21st of June, A.D. 528, O.S., and began at 3 minutes after 12 noon. I also knew that [...]
The cratered lunar face preserves the song
Of bolide roller derbies eons past
But while the cold dead moon remembers long
The rains of Earth reshape the surface fast.
Did impacts peak four billion years ago?
Or taper off through geologic time?
Archean rocks are analysed to know
micaceous balls were hot glass in their prime.
This impact melt was blasted into space
By comets larger than the
Organic matter recently detected by NASA’s robotic rover “Curiosity”
is probably not due to contamination brought from Earth as researchers
originally thought. A team of German and British scientists led by
geoscientist Prof. Dr. Frank Keppler from Heidelberg University now
suggests that the gaseous chlorinated organic compound – chloromethane –
recently found on the “Red Planet”
During the 19th century geologists realized that earth was quite older than previously believed, however this discovery posed an even greater question: what about the universe? Did earth (like some fundamental creationists believed and still believe) predate the cosmos, were earth and the cosmos created at the same time or came earth later? Early geologist
The latest IPCC report on climate change represents our most up to date understanding of the Earth’s climate, it’s changing behaviour and projections for the future. CGS scientist Professor Piers Forster, one of the lead authors of the new synthesis … Continue reading
Today's new ELI is 'Journey to the centre of the Earth - on a toilet roll; just how thin is the crust we live on?' We seldom stop to consider the true scale of many features of the Earth. This activity aims to enable pupils to visualise the thickness of the crust in relation to the rest of the Earth. It also helps them to appreciate the difference in depth between the oceanic crust and
I'm still adding dials before I play. I am convinced that oceanic currents are an independent factor, on a 10,000 year cycle, and they are intimately associated with continental aggregation. Look at this
In the short years I've been looking at it, there have been minor variations with large consequences, such as no hurricanes, more typhoons, etc. The picture is of
Subduction is just the beginning. Stuck on the surface of the earth as we are, it’s easy to think that when oceanic lithosphere is destroyed when it vanishes into the mantle. But this is wrong. The more we manage to peer … Continue reading
It’s only been a couple of weeks, but already Earth Science Week feels like a very long time ago! And it’s not over yet – it is at last (drumroll….) time to announce the results … Continue reading
Earth Institute agricultural scientist Pedro A. Sanchez argues in a new essay that new developments in both science and politics give him hope that sub-Saharan Africa will be able to feed itself by 2050, even with a projected population by then of about 2 billion
You are on that blue and white ball in the left corner of the image. A rare pic of the Earth and Moon showing the backside of the