The Perseid meteor shower takes place every year between July and August. It is caused by a trail of debris from a giant comet called 109P/Swift-Tuttle. The comet has an oblong orbit and takes about 133 years to orbit the Sun.
Every year, between July 17 and August 24, Earth crosses the orbit of Swift-Tuttle, which is filled with years of debris from the comet. When these pieces smash with our Earth’s atmosphere at high speeds, they burn and light up the sky causing, the Perseid meteor shower. According to NASA, the meteor velocity is 59 km/second.
Saturn is the sixth planet from the Sun and the second-largest planet in our solar system.
Nine Earths side by side would almost span Saturn’s diameter. That doesn’t include Saturn’s rings.
Saturn takes about 10.7 hours (no one knows precisely) to rotate on its axis once—a Saturn “day”—and 29 Earth years to orbit the sun.
Saturn is a gas-giant planet. Saturn's atmosphere is made up mostly of hydrogen (H2) and helium (He).
Saturn has 53 known moons with an additional 29 moons awaiting confirmation of their discovery—that is a total of 82 moons.
Sirius is the brightest star in the night sky At a distance of 8.6 ly. Its name is derived from the Greek word Seirios, lit. 'glowing' or 'scorching'.
Sirius is gradually moving closer to the Solar System, so it is expected to slightly increase in brightness over the next 60,000 years. After that time, its distance will begin to increase, and it will become fainter, but it will continue to be the brightest star in the Earth's night sky for approximately the next 210,000 years.
Scientists think that black holes are created in places where matter gets extremely dense (where a huge amount of material is crammed into an extremely small space). This can happen in the centers of large galaxies or when a giant star collapses and shrinks during the final phases of its life. When matter gets so dense that light cannot escape from it, the region that it is in becomes a black hole.
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