You may have heard of asteroid 16 Psyche thanks to an eye-popping monetary figure that's been attached to it: $10,000 quadrillion. It's a fantastical number based on the assumption that Psyche is made primarily of metal, a substance we tend to pay big bucks for here on Earth. We might need to rethink that hypothetical value a little.
The team took an unusual hands-on approach to estimating the asteroid's composition. The group "re-created 16 Psyche's regolith -- or loose rocky surface material -- by mixing different materials in a lab and analyzing light patterns until they matched telescope observations of the asteroid." The results suggest Psyche may have experienced collisions with other asteroids that then left a layer of deposits on its surface.
Asteroid described as 'potentially hazardous' due to come near Earth | Science | News |
Asteroid 2021 GM4 is a Goliath of near Earth asteroids, measuring in at a whopping 150 metres in length, making it much longer than a large football pitch (120m). Analysis from NASA shows the asteroid is currently voyaging through the solar system, travelling at a whopping 6.3 kilometres per second, or 22,680 kmph.
Rather, it refers to the sentiment that somewhere down the line in the solar system's future, an asteroid could collide with Earth.
East Tennessee Mars asteroid expert gets tapped into ultra-rare science order
KNOXVILLE, Tenn. (WVLT) - Hap McSween has done a lot of things over his 75 years: he's been a professor, mentor, Air Force pilot, a Harvard grad, nearly an astronaut in his younger days and now he's on the Mount Olympus of scientist.
Dr. McSween was recently invited into the prestigious National Academy of Science. Fewer than 3,000 Americans can say that.
That's a big deal for the Big Orange – with an assist from the Red Planet. And he was there when all the biggest discoveries were made.
OSIRIS-REx spacecraft on track with samples from asteroid Bennu, Nasa decides against course
The OSIRIS-REx spacecraft, which recently bid farewell to asteroid Bennu, is on track to deliver the samples collected from its surface to the Earth on September 24, 2023. Discovered in 1999, Bennu is a near-Earth asteroid.
American space agency Nasa launched OSIRIS-REx spacecraft in 2016 to bring back samples from the surface of this carbon dominated body in the solar system. Nasa in a statement has said that the spacecraft is now 528,000 kilometres away from the asteroid, after leaving its orbit on May 10.
How Much Water Was Delivered From The Asteroid Belt To The Earth After Its Formation?
The Earth contains between one and ten oceans of water, including water within the mantle, where one ocean is the mass of water on the Earth's surface today. With n-body simulations we consider how much water could have been delivered from the asteroid belt to the Earth after its formation.
Asteroids are delivered from unstable regions near resonances with the giant planets. We compare the relative impact efficiencies from the ν6 resonance, the 2:1 mean motion resonance with Jupiter and the outer asteroid belt. The ν6 resonance provides the largest supply of asteroids to the Earth, with about 2% of asteroids from that region colliding with the Earth.
Surprise Discovery Buried in 500 Million Years of Meteorite Impacts on Earth
The rain of meteorites from space onto our planet over the last 500 million years may not have fallen in quite the way we thought.
After analyzing 8,484 kilograms (18,704 pounds) of sedimentary rock from ancient seabeds, scientists have found that major collisions in the asteroid belt have not made any significant contribution to the number of meteorite impacts on Earth, as had been theorized.
"The research community previously believed that meteorite flux to Earth was connected to dramatic events in the asteroid belt," said geologist Birger Schmitz of Lund University in Sweden. "The new study, however, shows that the flux has instead been very stable."
Meteorites come from some unknown source and not different space rocks in the asteroid belt:
Scientists have long thought that meteorites, pieces of asteroids that hit the Earth's ground, have emanated from different space rocks in the asteroid belt.
The research looked at more than 500 million years worth of marine sedimentary rock containing meteorites, examining 15 different windows of time and found that all originate in the asteroid belt, but it's unclear where in the asteroid belt they're coming from.
Lunar Eclipse Helps Locate 3 Near-Earth Asteroids | Maui Now
One of them, an asteroid about the size of 1½ football fields, hadn't been seen since 2001. The Near-Earth asteroid, 2001 MY7, does not pose a threat to Earth, according to UH astronomers.
During the 60-minute window, when the Earth came between the Sun and the full moon to create the rare blood moon, Pan-STARRS astronomers also saw two new Near-Earth Objects.
The larger object, 2021 KM2, now with additional observations, has a well established orbit, and is approximately 450 feet in diameter. It poses no threat to Earth. The other object is smaller and has proven to be more elusive. Astronomers hope that it will be seen again in the next few weeks when the waning moon lets the sky become darker, so that an accurate orbit can be determined.
Asteroid Mining Market Growth With Worldwide Industry Analysis To 2027 – The Manomet Current
The research and analysis conducted in Asteroid Mining Report helps clients to predict investment in an emerging market, expansion of market share or success of a new product with the help of global market research analysis. This report has been designed in such a way that it provides very evident understanding of the business environment and Asteroid Mining industry. Nevertheless, this global market research report unravels many business problems very quickly and easily.
Market expectations for likely development openings have been mentioned clearly in this world class Asteroid Mining Market research report. Competition analysis has been taken into account while preparing this report. A market analysis has turned into a vital piece of every business to settle on smart choices in the organizations which have been viably carried by experienced analysts.
Earth's meteorite impacts over past 500 million years tracked -- ScienceDaily
For the first time, a unique study conducted at Lund University in Sweden has tracked the meteorite flux to Earth over the past 500 million years. Contrary to current theories, researchers have determined that major collisions in the asteroid belt have not generally affected the number of impacts with Earth to any great extent.
Researchers have been studying geological series since the 19th century in order to reconstruct how flora, fauna and the climate have changed over millions of years. Until now, however, almost nothing has been known about ancient meteorite flux -- which makes sense since impact is rare, and the battered celestial bodies quickly break down as they encounter Earth's oxygen.
No comments:
Post a Comment