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Neutron are the densest and tiniest stars in the known and although they only have a radius of about 10 km (6 mi), they may have a mass of a few times that of the Sun.
They can rotate up to 60 times per second after they are born from a core-collapse supernova star explosion and have been known to spin as fast as 600-712 times per second because of their physics.
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A dazzling new image from the Hubble Space Telescope captures a stunning view of a nearby open cluster of stars that is slowly dissolving into the dwarf galaxy around it.
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The Great Dark Spot was a huge spinning storm in the southern atmosphere of Neptune which was about the size of the entire Earth. Winds in this storm were measured at speeds of up to 1,500 miles per hour. These were the strongest winds ever recorded on any planet in the solar system!
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Earth had its shortest ever recorded on June 29, with the day ending 1.59 milliseconds sooner than usual, according to the National Physical Laboratory in England. Earth's rotation on its axis determines our daily cycle of sunrise and sunset. Each rotation takes 24 hours, or 86,400 seconds.
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While Mars seems quiet now, gigantic volcanoes once dominated the surface of the planet. This includes Olympus Mons, the biggest volcano ever discovered in the solar system. At 374 miles (602 km) across, the volcano is comparable to the size of Arizona. It's 16 miles (25 kilometers) high, or triple the height of Mount Everest, the tallest mountain on Earth. By volume, according to NASA, Olympus Mons is 100 times larger(opens in new tab) than Earth's largest volcano, Hawaii's Mauna Loa.
Scientists speculate that volcanoes on Mars can grow to such immense size because gravity there is much weaker than it is on Earth.
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A recently discovered comet will closely pass by the Earth in early 2023 and will be visible to the naked eye, according to the National Aeronautics and Space Administration (NASA).
This phenomenon is set to occur for the first time in 10,000 years. The comet, named C/2022 E3 (ZTF), which was discovered in March 2022 by at the Zwicky Transient Facility, will be just bright enough to be visible with the naked eye to night-sky enthusiasts.
The comet is set on pace to become visible for viewers in the Northern Hemisphere in January and for Southern Hemisphere viewers in early February, with its closest approach to Earth being on February 1.
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NASA's Juno spacecraft recently photographed Jupiter's south pole during a flyby of a gas giant, and it looks mesmerizing!
This marks the 22nd data-gathering flyby of the planet and was a major victory for the team that almost lost the spacecraft.
NASA’s James Webb Space Telescope has captured a lush, highly detailed landscape – the iconic Pillars of Creation – where new stars are forming within dense clouds of gas and dust. The three-dimensional pillars look like majestic rock formations, but are far more permeable. These columns are made up of cool interstellar gas and dust that appear – at times – semi-transparent in near-infrared light.
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Sirius appears bright because of its intrinsic luminosity and its proximity to the Solar System.
A and B. The brightest star in the sky is Sirius, also known as the “Dog Star” or, more officially, Alpha Canis Majoris, for its position in the constellation Canis Major. Sirius is a binary star dominated by a luminous main sequence star, Sirius A, with an apparent magnitude of -1.46.
GJ 504b, the is made of pink gas. It's similar to , a giant gas planet in our own solar system. But GJ 504b is four times more massive. At 460°F, it's the temperature of a hot oven, and it's the planet's intense heat that causes it to glow.
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Determines Mass of Isolated Black Hole Roaming Our Galaxy.
Stellar-mass are usually found with companion stars, making this one unusual.
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Just as colors are made more dramatic in on Earth, sunsets on Mars, according to NASA, would appear bluish to human observers watching from the red planet. Fine dust makes the blue near the Sun's part of the sky much more visible, while normal daylight makes the Red Planet's familiar rusty dust color the most perceptible to the human eye.
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It may be the biggest planet in our ,
but it would still need more mass to turn into a second . is often called a 'failed star' because, although it is mostly hydrogen like most normal stars, it is not massive enough to commence thermonuclear reactions in its core and thus become a 'real star'.
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An is any planet beyond our .
TrES-2b is an extrasolar planet orbiting the star GSC 03549-02811 located 750 light years away from the Solar System. The planet was identified in 2011 as the darkest known exoplanet, reflecting less than 1% of any light that hits it.
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The extends far beyond our own galaxy, The Milky Way, which is why scientists can only estimate how many stars are in . However, estimate the universe contains approximately 1,000,000,000,000,000,000,000,000 stars, or a septillion. While no one can actually count every single grain of sand on the earth, the estimated total from researchers at the University of Hawaii, is somewhere around seven quintillion, five hundred quadrillion grains. That is an awfully big sand castle!
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Another kind of is called "stellar." Its mass can be up to 20 times more than the mass of the sun. There may be many mass black holes in our .
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has a slow axis rotation which takes 243 Earth days to complete its day. The orbit of Venus around the is 225 Earth days, making a year on Venus 18 days less than a day on Venus.
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So for us on , one full rotation equals one full day. However, our gigantic takes 25 – 35 Earth days to make one full rotation.
Technically, The Sun has a north and south pole, just as the Earth does, and rotates on its axis. However, unlike Earth which rotates at all latitudes every 24 hours, the Sun rotates every 25 days at the equator and takes progressively longer to rotate at higher latitudes, up to 35 days at the poles.
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It is physically impossible for pigs to look up straight to the sky. It’s the anatomy of their neck muscles and the spine that limits the movement of their head and restricts them to look totally upwards. Even to look at a tree top, a pig has to take one or more steps back while lifting its head to see directly above it.
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Just over 96% of the total amount of the world's water is held in its oceans, according to Water in Crisis: A Guide to the World's Fresh Water Resources via the United States Geological Survey (USGS). However, that's primarily saltwater. To find the bulk of the world's freshwater you need to trek to the poles, as 68.7% of it is encased in ice caps, permanent snow, and glaciers.
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The largest and heaviest turtle ever recorded was a leatherback that washed ashore in the United Kingdom in Sept. 1988 after it had drowned when it was trapped in a fishing line. Around 100 years old at the time of its death, the turtle was almost 9 feet long and weighed 2,016 pounds.
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Because of , the Earth's layer has suffered a lot. That's bad news for everyone, since the fragile gas layer protects our planet and shields us from the sun's harmful ultraviolet rays. Fortunately, climate change experts believe that the ozone layer will fully heal within 50 years, according to a 2018 report from the .
The recovery is thanks in large part to the Montreal Protocol of 1987, which put a global ban on the use of one of the main culprits for the damage: chlorofluorocarbons (CFOs). Previously, CFOs had been common in refrigerators, aerosol cans, and dry-cleaning chemicals.
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