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NASA Warns Of Two Massive Asteroids Set For Close Encounter with Earth on THIS Date, Check Time, Speed and Distance
2024-12-19 - 2024-12
NASA is closely monitoring two house-sized asteroids, designated 2024 XQ4 and 2024 XN15, as they approach Earth on December 21, 2024. While these celestial visitors will make relatively close passes, NASA has confirmed they pose no threat to our planet.
Asteroid 2024 XQ4
The first one is 2024 XQ4, an asteroid measuring 50 feet in diameter, or the size of a house. It will pass Earth at an incredible speed of 47,634 km/h. At its closest, 2024 XQ4 will be just 1,060,000 kilometers away from Earth, a distance considered close in astronomical terms. This near encounter will take place at 3:03 PM IST.
Asteroid 2024 XN15
The other asteroid, 2024 XN15 is a bit bigger at approximately 60 feet and also house-sized. It is going to safely pass at a distance of 3,780,000 kilometers from Earth and is going at a speed of 35,051 km/h. Its closest approach to Earth is on the same day at 2:38 pm IST.
Surprise discovery in alien planet's atmosphere could upend decades of planet formation theory
2024-12-18 - 2024-12
Scientists' best theories on how planets form could be wrong, new research suggests. Astronomers studying a still-forming planet beyond our solar system have found that its chemical makeup doesn't fully match the swirling gas and dust disk from which it formed. The finding challenges standard models of planet formation and implies they may be overly simplistic, the researchers say.
The budding planet, called PDS 70b, is a world nearly thrice as big as Jupiter and resides about 400 light-years from Earth in the constellation Centaurus. It is part of a two-planet system — one of the few known where planets are still coalescing, providing a valuable environment for astronomers to examine the link between newborn planets and their natal disk. PDS 70b circles its host star at a distance similar to Uranus' orbit around the sun, and previous observations have hinted that it could be nearing the end of its newborn era after accumulating mass for about 5 million years.
In May, astronomers used Hawaii's Keck II telescope to study the chemical makeup of PDS 70b, specifically looking at the abundance of carbon monoxide and water. The team used this information to infer how much carbon and oxygen is present in the planet's atmosphere — two of the most common elements in our universe after hydrogen and helium and thus key traces of planet formation.
Christmas Eve Asteroid Alert: 120-Foot Space Rock Racing Toward Earth
2024-12-20 - 2024-12
Scientists are closely monitoring asteroid 2024 XN1, scheduled to pass Earth on December 24. The asteroid measures approximately 120 feet and passes 4,480,000 miles away; that is 16 times the distance of the Moon and Earth. Moving at a great speed of 14,743 miles per hour. This event is a "near miss," say the scientists, who add that there is no danger at all to Earth in terms of the flyby. But asteroids like 2024 XN1 are important in understanding how the early solar system came to be. NASA is keeping a close eye on the asteroid, using state-of-the-art tracking technology to understand the path of this asteroid. This asteroid has no possibility of posing a threat, but its passage reminds every one of the importance of continuing with planetary defense efforts.
Asteroid 2024 XN1 is the largest of the next five asteroids that will make close approaches to Earth. This massive space rock, measuring around 120 feet in diameter, is being closely monitored by NASA's Asteroid Watch dashboard, which tracks asteroids and comets making relatively close passes by our planet.
Here’s How the Earth’s Core Powers Your GPS and Why It Just Received an Update
2024-12-17 - 2024-12
Every five years, something quietly critical happens to keep your GPS and navigation apps running smoothly: scientists update the World Magnetic Model. This mathematical prediction of Earth’s magnetic field helps everything from satellites to smartphones align their digital compasses with magnetic north and the latest update, released on December 17, 2025, ensures we stay on track for the next five years.
But why does the magnetic field need constant attention? It all comes down to the molten iron swirling thousands of miles beneath our feet in Earth’s outer core. This movement creates a self-sustaining electric current, generating a magnetic field in a process called the geodynamic. Without this invisible shield, Earth would lose its magnetic field entirely in about 40,000 years, leaving us vulnerable to cosmic radiation.
Unlike the geographic North Pole, which remains stationary, the magnetic north pole is constantly on the move drifting tens of miles every year. Recent changes in the magnetic field’s strength have even pushed the magnetic north pole from Canada toward Siberia at an accelerated pace. These shifts make updates to the World Magnetic Model essential.
Experts reveal new world magnetic model, predict how Earth’s magnetic field will shift in 5 years
2024-12-18 - 2024-12
The National Centre’s for Environmental Information (NCEI) and British Geological Survey (BGS) have unveiled the latest World Magnetic Model. This update, released on 17 December, predicts changes in Earth's magnetic field for the next five years.
The model is crucial for navigation systems and smartphone apps, ensuring accurate orientation for users worldwide. While the update may seem technical, it affects daily tools like Google Maps, used by millions.
Understanding Earth's Magnetic Field
Earth's magnetic field originates in its molten outer core. This layer of liquid iron lies around 2,200 miles below the surface. As the liquid iron moves, it generates electric currents. These currents create the magnetic field in a process known as the geodynamic.
