SHOCKING Facts of Space

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Silent Screams: In the vacuum of space, there's no air for sound waves to travel through, so even the loudest scream goes unheard. Astronauts rely on radios, using electromagnetic waves, to communicate in this soundless environment.
Venus, the Hottest: Despite its proximity to the Sun, Venus, not Mercury, holds the title of the hottest planet in our solar system. With an average surface temperature of 232 °F (450 °C), it's scorching.
Life Hints on Mars: Mars stands out as the most likely planet, apart from Earth, to host life. In 1986, NASA discovered possible fossilized microorganisms in a Martian rock.
Stellar Uncertainty: The vastness of space makes it impossible to pinpoint the exact number of stars. Estimates within our Milky Way range from 200-400 billion, and with billions of galaxies, the total star count is beyond calculation.
Halley's Comet Returns: Discovered in 1705, Halley's Comet orbits Earth roughly every 75-76 years. Its last appearance was in 1986, and it won't be seen again until 2061.
Costly Space Suit: A complete NASA spacesuit costs $12 million, primarily due to the backpack and control module. Surprisingly, suits from 1974 are still in use, with the first all-female spacewalk delayed in 2019 due to suit availability.
Dense Neutron Stars: Neutron stars, the tiniest and densest known stars, can have a mass several times that of the Sun within a radius of about 10 km (6 mi). They exhibit rapid rotation, spinning up to 600-712 times per second.
Diamond Planet: Yale University scientists found evidence of 55 Cancri e, a planet possibly composed of diamond and graphite, eight times Earth's mass and twice its size.
Moon Footprints Forever: The Moon's lack of atmosphere means footprints left by Apollo astronauts, spacecraft prints, and more will endure for around 100 million years.
Venusian Day vs. Year: A day on Venus lasts longer than its year due to its slow axial rotation taking 243 Earth days, while its orbit around the Sun spans 225 Earth days.
Milky Way-Andromeda Collision: In 3.75 billion years, the Milky Way and Andromeda galaxies will collide, forming a giant elliptical galaxy.
Cold Welding in Space: If two identical metal pieces touch in space, they permanently bond through "cold welding" because the lack of air and water prevents their separation.
Floating Water in Space: Astronomers discovered a colossal water vapor cloud, 140 trillion times the mass of Earth's oceans, around 10 billion light-years away.
Largest Known Asteroid: Ceres, the largest asteroid, discovered in 1801, comprises 33% of the asteroid belt's mass and is 600 miles (965 km) wide.
Moon's Earthly Origin: The Moon likely formed from Earth when a massive object collided with our young planet, breaking off a piece that later became our Moon. Subscribe to Knowledge Nectar for more captivating insights into our universe!