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Monday, November 30, 2020
The Moon is Older Than Researchers Idea

The Moon is Older Than Researchers Idea

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The most comprehensive and widely-held theory of how the Moon formed is called the ‘giant impact hypothesis.’ That hypothesis shows that about 150 million years after the Solar System formed, a roughly Mars-sized planet named Theia collided with Earth. Though the timeline is hotly-debated in the scientific community, we know that this collision melted Theia…
Fossilized Clams Had Proof of a Meteorite Effect Inside Them

Fossilized Clams Had Proof of a Meteorite Effect Inside Them

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When an extraterrestrial object slams into the Earth, it sends molten rock high into the atmosphere. That debris cools and re-crystallizes and falls back down to Earth. Tiny glass beads that form in this process are called microtektites, and researchers in Florida have found microtektites inside fossilized clams. This story starts over 10 years ago…
1.2 billion years earlier, a 1-km asteroid smashed into Scotland

1.2 billion years earlier, a 1-km asteroid smashed into Scotland

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In 2008, scientists from Oxford and Aberdeen University made a startling discovery in the northwest of Scotland. Near the village of Ullapool, which sits on the coast opposite the Outer Hebrides, they found a debris deposit created by an ancient meteor impact dated to 1.2 billion years ago. The thickness and extent of the debris…
Geology As A Consider The Fight Of Normandy

Geology As A Consider The Fight Of Normandy

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<div _ngcontent-c14="" innerhtml=" "American invaders spring from the ramp of a Coast Guard-manned landing barge to wade those...
Rovers on Mars must be looking for rocks that appear like pasta– they’re likely developed by life

Rovers on Mars must be looking for rocks that appear like...

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According to a new NASA-funded study that appeared in Astrobiology, the next missions to Mars should be on the lookout for rocks that look like “fettuccine”. The reason for this, according to the research team, is that the formation of these types of rocks is controlled by a form of ancient and hardy bacteria here…
This Unusual Function on Mars was Most Likely the Outcome of an Ancient Volcanic Surge

This Unusual Function on Mars was Most Likely the Outcome of...

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A strange feature on the surface of Mars has kept scientists guessing about its origin. It’s a surface deposit of a mineral which is more common in the interiors of planets. A new study shows that this interior mineral was probably brought to the surface by an ancient explosive volcano. Nili Fossae is located in…
China’s Chang’ E-4 might have landed near pieces of the Moon’s interior

China’s Chang’ E-4 might have landed near pieces of the Moon’s...

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Enlarge / The original Yutu rover, shown on the Moon. While some of the details are still being worked out, it's generally agreed that the Moon formed when a Mars-sized body collided with the early Earth. Some of the debris put into orbit by the collision would then go on to condense into the Moon.…

Astronomy Cast Ep. 522: Evaluating Age & & Origins, part 1–...

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People always want to know how old everything is. And more specifically, they want to know how we know how old everything is. Well, here at Astronomy Cast, it’s our job to tell you now only what we know, but how we know what we know. And today we’ll begin a series on how we…
500 million years of environment history pinned on plate tectonics

500 million years of environment history pinned on plate tectonics

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Enlarge / Indonesia's Paluweh volcano sits in a region of colliding tectonic plates—perhaps the formula for glacial periods in geologic history. Generally speaking, it’s easy enough to make sense of the last few million years of climate patterns—the world looked much as it does today, so changes in greenhouse gas concentrations or ocean circulation can…
Huge Volcanic Eruptions 66 Million Years Ago Took Place Practically Precisely When the Dinosaurs Passed Away Off

Huge Volcanic Eruptions 66 Million Years Ago Took Place Practically Precisely...

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Everyone knows an asteroid strike wiped out the dinosaurs, right? Lots of evidence shows that the Chicxulub impact event had terrible consequences for the dinosaurs. But the picture is a little more complicated than that. Extreme volcanic activity may have contributed to the extinction. At the end of the Cretaceous period, about 66 million years…

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