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Near-Earth Object Impacts News — ScienceDaily

Sampling the Deep Graveyard of Earth’s Earliest Crust

Scientists show that remnants of the roots of Earth’s first crust are still present in the terrestrial mantle and contribute to magmas erupted at the surface over Earth’s …

Earth’s Atmosphere May Be Source of Some Lunar Water

Hydrogen and oxygen ions escaping from Earth’s upper atmosphere and combining on the moon could be one of the sources of the known lunar water and ice, according to new …

Ancient Helium Leaking from Core Offers Clues to Earth’s Formation

Helium-3, a rare isotope of helium gas, is leaking out of Earth’s core, a new study reports. Because almost all helium-3 is from the Big Bang, the gas leak adds evidence that Earth formed inside …

Giant Impact Crater in Greenland Occurred a Few Million Years After Dinosaurs Went Extinct

Researchers have dated the enormous Hiawatha impact crater, a 31-kilometer-wide meteorite crater buried under a kilometer of Greenlandic ice. The dating ends speculation that the meteorite impacted …

Secondary Cratering on Earth: The Wyoming Impact Crater Field

Several dozen small impact craters, 10–70-m in size, have been discovered in southeastern Wyoming. A team of U.S. and German geoscientists found these ancient craters in exposed sedimentary layers …

Moons May Yield Clues to What Makes Planets Habitable

Because the moon is so important to life on Earth, scientists conjecture that a moon may be a potentially beneficial feature in harboring life on other planets. Most planets have moons, but …

Did Comet’s Fiery Destruction Lead to Downfall of Ancient Hopewell?

The rapid decline of the Hopewell culture about 1,500 years ago might be explained by falling debris from a near-Earth comet that created a devastating explosion over North America, laying waste to …

Size Doesn’t Matter: Rock Composition Determines How Deadly a Meteorite Impact Is

A new study has found that the minerology of the rocks that a meteorite hits, rather than the size of the impact, determines how deadly an impact it will …

Scientist Reveals Cause of Lost Magnetism at Meteorite Site

A scientist has discovered a method for detecting and better defining meteorite impact sites that have long lost their tell-tale craters. The discovery could further the study of not only …

Vast Patches of Glassy Rock in Chilean Desert Likely Created by Ancient Exploding Comet

Heat from a comet exploding just above the ground fused the sandy soil into patches of glass stretching 75 kilometers, a new study …

A New Earth Bombardment Model

A team has updated its asteroid bombardment model of the Earth with the latest geologic evidence of ancient, large collisions. These models have been used to understand how impacts may have affected …

Earth’s ‘solid’ Inner Core May Contain Both Mushy and Hard Iron

New research suggests that Earth’s ‘solid’ inner core is, in fact, endowed with a range of liquid, soft, and hard structures which vary across the top 150 miles of the inner …

Earth Is Dimming Due to Climate Change

Researchers used decades of measurements of earthshine — the light reflected from Earth that illuminates the surface of the Moon to find that there has been a significant drop in Earth’s …

Like a Molten Pancake

Why magma flowed along a curved pathway during the 2018 eruption of a Galapagos volcano is explained by a new …

Earth’s Meteorite Impacts Over Past 500 Million Years Tracked

For the first time, a unique study 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 …

Did Heat from Impacts on Asteroids Provide the Ingredients for Life on Earth?

A research group has demonstrated that the heat generated by the impact of a small astronomical body could enable aqueous alteration and organic solid formation to occur on the surface of an …

Understanding of Invisible but Mighty Particles in Earth’s Radiation Belts

Tiny charged electrons and protons which can damage satellites and alter the ozone have revealed some of their mysteries to …

Rare 4,000-Year Comets Can Cause Meteor Showers on Earth

Researchers report that they can detect showers from the debris in the path of comets that pass close to Earth orbit and return as infrequently as once every 4,000 …

Solar Wind from the Center of the Earth

High-precision noble gas analyses indicate that solar wind particles from our primordial Sun were encased in the Earth’s core over 4.5 billion years ago. Researchers have concluded that the …

Asteroid That Hit Botswana in 2018 Likely Came from Vesta, Scientists Say

An international team of researchers searched for pieces of a small asteroid tracked in space and then observed to impact Botswana on June 2, …

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Source link The near-Earth object (NEO) impact hazard has been the topics of various reports and studies in recent years. The news of the potential devastation from NEOs have now been captured in a new study from ScienceDaily.

The report reveals that current technology can’t track many dangerous NEOs, leaving us blind to the potential risks they pose. Astronomers have significant challenges in tracking, as current NEOs appear too faint to be detected until they are dangerously close to Earth.

NEOs are asteroids and comets orbiting the Sun whose orbits occasionally take them into Earth’s vicinity. In the past, NEOs have collided with the Earth and there remains a risk of future events. Scientists have estimated that most NEOs aren’t discovered until they pass within detection range.

One of the ways to detect NEOs is by using ground-based telescopes, which scans the sky for objects that are moving relative to stars. However, these traditional searches have difficulty discovering NEOs for a variety of reasons, including their dimness, the moon’s brightness, and the nearly constant speed at which asteroids move.

The report recommends new technology and methods, such as upgraded tracking systems with more sensitive detectors and larger databases of NEOs. Additionally, the report advocates for further international collaborations to push these advancements further.

The authors of the report state that these improvements can help in better identifying and reducing the risk of NEOs. Ultimately, the new technology and methods will help scientists to better understand our solar system and help to identify threatening NEOs more quickly.

In conclusion, ScienceDaily’s new report provides insight on the challenges in tracking NEOs and offers potential solutions. With the proposed methods and technology, scientists can help to safeguard our planet and provide more clarity on the mysterious NEOs.

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