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The universe is the vast, all-encompassing expanse that contains everything in existence: space, time, matter, energy, galaxies, stars, planets, and all the laws of physics that govern them.

The comet 3I/ATLAS has garnered attention for its highly unusual composition. Unlike typical comets, which are dominated...
20/09/2025

The comet 3I/ATLAS has garnered attention for its highly unusual composition. Unlike typical comets, which are dominated by water ice, 3I/ATLAS exhibits a strikingly different profile. Its “coma”—the nebulous envelope surrounding the nucleus—is dominated by carbon dioxide (CO₂) rather than water. This results in an exceptionally high CO₂/H₂O ratio, one of the highest ever recorded in any known comet. Further adding to its mystery, 3I/ATLAS began emitting water and volatile compounds when it was approximately 325 million miles from the Sun. This is a distance where water sublimation is typically minimal.

It might sound hard to believe, but NASA's exoplanet count just reached 6,000 and that's with only about 30 years of hu...
19/09/2025

It might sound hard to believe, but NASA's exoplanet count just reached 6,000 and that's with only about 30 years of hunting worlds beyond our solar system. In fact, only three years ago, that figure was at 5,000. At least at face value, the rate of discovery appears to be exponential — which is good, because, theoretically, there should be billions more worlds out there for us to locate.

Neutron stars are created when a massive star (typically between 10 to 25 solar masses) exhausts its nuclear fuel and un...
19/09/2025

Neutron stars are created when a massive star (typically between 10 to 25 solar masses) exhausts its nuclear fuel and undergoes a supernova explosion. Neutron stars possess extremely strong magnetic fields, often exceeding 10^12 gauss, which can influence their behavior and the surrounding space.

The deepest canyon on Mars is Valles Marineris, which is also the largest canyon in the Solar System. It stretches over ...
19/09/2025

The deepest canyon on Mars is Valles Marineris, which is also the largest canyon in the Solar System. It stretches over 4,000 km (2,500 miles) long, reaches up to 200 km (120 miles) wide, and plunges as deep as 7 km (23,000 feet). This massive canyon system is nearly 10 times longer than the Grand Canyon and three times deeper.

Saturn has the most extensive and complex ring system of any planet in the Solar System. The rings consist of particles ...
19/09/2025

Saturn has the most extensive and complex ring system of any planet in the Solar System. The rings consist of particles in orbit around the planet and are made almost entirely of water ice, with a trace component of rocky material. Particles range from micrometers to meters in size.

This nighttime view of Saturn north pole clearly shows a bizarre six-sided hexagon feature encircling the entire north p...
19/09/2025

This nighttime view of Saturn north pole clearly shows a bizarre six-sided hexagon feature encircling the entire north pole. This is one of the first clear images taken of the north polar region ever acquired from a unique polar perspective.

In a groundbreaking moment for astronomy, scientists have captured the birth of a planet for the first time. This remark...
19/09/2025

In a groundbreaking moment for astronomy, scientists have captured the birth of a planet for the first time. This remarkable event unfolds nearly 400 light-years from Earth, where a gas giant five times the size of Jupiter is emerging from a swirling cloud of cosmic dust and gas. The discovery, published in the Astrophysical Journal Letters, offers unprecedented insights into planetary formation and could significantly advance our understanding of the cosmos. As this young planet takes shape, astronomers are keen to unravel the mysteries of how such celestial bodies form and evolve.

Can a spacecraft land on a teeny tiny asteroid? Japan's Hayabusa2 will certainly try.The Hayabusa2 mission is facing a n...
18/09/2025

Can a spacecraft land on a teeny tiny asteroid? Japan's Hayabusa2 will certainly try.The Hayabusa2 mission is facing a new challenge after observations showed the asteroid it is going to rendezvous with and touchdown on in 2031 is much smaller than previously thought; it's also spinning much faster.

Scientists have measured the recoil velocity from a cataclysmic collision between two black holes for the very first tim...
18/09/2025

Scientists have measured the recoil velocity from a cataclysmic collision between two black holes for the very first time.Gravitational waves are ripples in space-time first proposed to exist by Albert Einstein, and detected for the first time in 2015. Another first came in 2019, when scientists picked up a gravitational wave signal resulting from a violent merger between vastly different sized black holes. The size imbalance caused the newborn black hole to ricochet off into the universe in a phenomenon known as a "natal kick."

An accretion disk is a structure (often a circumstellar disk) formed by diffuse material in orbital motion around a mass...
18/09/2025

An accretion disk is a structure (often a circumstellar disk) formed by diffuse material in orbital motion around a massive central body. The central body is most frequently a star. Friction, uneven irradiance, magnetohydrodynamic effects, and other forces induce instabilities causing orbiting material in the disk to spiral inward toward the central body. Gravitational and frictional forces compress and raise the temperature of the material, causing the emission of electromagnetic radiation. The frequency range of that radiation depends on the central object's mass. Accretion disks of young stars and protostars radiate in the infrared; those around neutron stars and black holes in the X-ray part of the spectrum.

At least four distinct plumes of water ice spew out from the south polar region of Saturn moon Enceladus in this dramati...
18/09/2025

At least four distinct plumes of water ice spew out from the south polar region of Saturn moon Enceladus in this dramatically illuminated image. Light reflected off Saturn is illuminating the surface of the moon while the sun backlights the plumes.

Scientists have discovered a rock on Mars that resembles a smiling face. The image, released by the University of Arizon...
17/09/2025

Scientists have discovered a rock on Mars that resembles a smiling face. The image, released by the University of Arizona, shows a teddy bear-like face with two eyes and a nose.This image was taken by NASA's Mars Reconnaissance Orbiter while it was flying 251 kilometers above Mars. The teddy bear's eyes are actually Martian depressions called craters. In this image, you can see the teddy bear's eyes on the head.

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