In the high desert of Arizona, you'll find a crater from a jaw-dropping impact. Here's what it looks like.
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Jupiter's moon is covered in troughs from an asteroid impact
NASA will use the suite of instruments on the Mars 2020 rover to hunt for microscopic fossils, the space agency has announced.Experts have selected an ideal location at the Red Planet’s Jezero Crater where the fossils — if they exist — may be located.The hunt is part of NASA’s mission to determine whether life ever existed on Mars.Assuming everything goes according to plan, the Mars 2020 rover will land on the Red Planet in mid-February 2021, kicking off the space agency’s latest exploration of the planet.The rover packs a suite of new instruments that bring additional capabilities to NASA’s effort, enabling the rover to focus on astrobiology and look for signs of microbial life in the planet’s ancient past.As detailed in a study published earlier today, Mars’ Jezero Crater features an inner rim full of carbonates, a type of mineral deposit.
The fourth largest object in the asteroid belt, a space rock known as (10) Hygiea, has been something of a mystery for astronomers even though it was discovered over 170 years ago.A new study, using high-resolution Earth telescopes, has revealed Hygiea may not just be any old space rock, but a dwarf planet in its own right.The study, published in the journal Nature on Oct. 28, observed (10) Hygiea with the SPHERE (Spectro-Polarimetric High-contrast Exoplanet REsearch) instrument attached to the European Southern Observatory's Very Large Telescope (VLT) in 2017 and 2018.Combining the observations with advanced numerical computations and modelling, the team was able to see the shape of Hygiea better than ever before.Eventually, they reassembled into asteroid and (10) Hygiea.But this original impact, the team believed, would have left a huge impact crater on Hygiea's surface.
As nasty as the asteroid impact at the end of the Cretaceous sounds, you wouldn't think scientists would be spending much time asking, "Yeah, but how did things actually die?"With so many awful things going on at once—including a remarkable stretch of volcanic eruptions in what is now India—there are a handful of kill mechanisms to choose from.On land, there were several years of freezing temperatures and sunless skies, not to mention the tsunamis and worldwide wildfires.The oceans have a tremendous thermal mass, however, that would have moderated the global chill.End-Cretaceous asteroid impact seems to have juiced seafloor volcanoesAfter the skies cleared, potent global warming set in for the long haul due to the CO2 produced when the impactor evaporated bedrock to make the impact crater.
An important step toward more long-term manned missions to the moon is locating a source of water.If water is available to future astronauts on the moon, they will be able to stay much longer than if they have to carry a large amount of heavy water with them on their trip from Earth.Recent research has suggested that there could be frozen water in craters near the moon’s poles, and there may even be minute amounts of liquid water which travel across the moon’s surface.But scientists aren’t sure whether this water originates, so it’s hard to predict where it could be found.Now, a new study has investigated the age and origin of lunar water and found it could have multiple different sources.Some of the ice deposits seem to be billions of years old, while others are more recent.
A study headed by marine geophysicist Sean P. S. Gulick described a clear timeline for asteroid impact that destroyed the dinosaurs here on Earth.This event was the end of the Cretaceous period, soon the Cenozoic, the crossover into which we’ll be running down today.Information comes from none other than the Chicxulub impact crater in Mexico.A team of scientists explored drill cores recovered by the International Ocean Discovery Program (IODP)–International Continental Scientific Drilling Program (ICDP) Expedition 364.These cores show the Cretaceous–Paleogene (K-Pg) boundary section from the Chicxulub peak ring.ABOVE: VIA “The first day of the Cenozoic” cited below – several samples of debris from the sample site.
In a startling interview, NASA's Planetary Science Division director Jim Green, Ph.D., has said the space agency is close to "making some announcements" about finding life on Mars — but that we're not ready for it.“It’s like when Copernicus stated ‘no we go around the Sun.'I don’t think we’re prepared for the results.He added that he's worried because he believes NASA is close to finding life and making an announcement about it but wonders what will happen afterward.ANCIENT MARS WAS WARM AND RAINY ENOUGH TO SUPPORT LIFE, STUDY SAYS“What happens next is a whole new set of scientific questions," Green continued.
During its last lunar day of exploration, China's moon rover, Yutu-2, stumbled upon a strange, "gel-like" substance in the middle of a crater.Chinese lunar scientists were perplexed but there were suggestions the material was created by a meteor impact which caused melt glass to be left behind.Soon after the discovery, China put Yutu-2 to work as a Sherlock Holmes, ready to solve the case of the weird moon muck.In a recent social media update, picked up by Space.com's Andrew Jones, Chinese scientists detail their mission to the crater to study the strange substance.Unfortunately, a comprehensive understanding of the unusual substance remained elusive during a first pass, as the 2-meter wide crater was draped in shadow.On Yutu-2's last exploration day (a 14-day cycle on the moon), it again examined the site -- this time with a little more dare.
Scientists say they have spotted evidence of what it was like on the first day after the dinosaur-killing impact event, thanks to an analysis of rock taken from the famous Chixculub crater.An asteroid slammed into Earth around 66 million years ago, causing catastrophic events that changed the course of life on this planet.Rock cores recently taken from the resulting crater show evidence of hills, tsunamis, fires, and atmosphere-altering gases, all produced in the first day after the impact.The impact probably went as follows, based on the rock samples and what we already know about the area surrounding the crater.Soon, the ring would have been covered by more than a hundred feet of so-called shocked rock, deformed by the high heat and pressure.The ocean would then have filled the crater, depositing any debris it was carrying.
Sounds like normal life in the Shetland IslandsGeologists believe they have found rocks that filled the impact crater of the gigantic asteroid that pummeled Earth and killed off the dinosaurs some 65 million years ago.The catastrophic crash was about as powerful as setting off at least 10 billion Little Boy A-bombs, the type dropped on Hiroshima.The smash triggered wildfires, tsunamis, and sent up thick wafts of sulfur that choked out sunlight long enough to cool global temperatures down, leading to the extinction of the dominant species on the planet at the time.Now, a large team of scientists led by eggheads at the University of Texas, Austin, in the US reckon they have uncovered the rubble that rushed in to pack the gaping hole after the asteroid struck.Known as the Chicxulub crater, it's located in the Yucatán Peninsula in Mexico.
Scientists at the University of Texas at Austin have found "hard evidence" of the asteroid that killed off dinosaurs.The research, published Monday and reported earlier by The Wall Street Journal, shows the asteroid caused wildfires and tsunamis after hitting with the impact of 10 billion WWII-era atomic bombs.Inside an impact crater off the Gulf of Mexico scientists discovered charcoal and soil, swept inside by the backflow of a tsunami within the first 24 hours of the asteroid impact, research said.This showed how the blast ignited trees and plants thousands of miles away from the impact zone, and triggered a far-reaching inland tsunami across the Americas.But no sulfur was found in the core of the impact crater -- meaning around 325 billion metric tons of sulfur was released into the atmosphere that day.This destroyed Earth's existing climate, blocking out the sun and causing a global cooling period that caused the "mass extinction" of the dinosaurs.
Children, teenagers, adults, and even old people have become addicted to smartphones and spending their time on social media (Social Media Harmful Impacts) in one or the other form.Two great psychologists “Mark Griffiths and Daria Kuss” of Nottingham Trent University in the U.K. have studied the impact of technology and social media on the cognitive and social behavior of people of all ages.This number is actually around one-third of the global population whereas, in the year 2017, it was an estimation of 210 million people.If one uses social media to forget about personal problems?Highlighting the loss of productivity in the workplace and educational settings, employers, schools and colleges need better policies to ensure that people are focused on their required tasks and activities.Overcome Social Media Addiction 3
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