Stars twinkle because light is disrupted as it passes through Earth’s atmosphere.
Their light must pass through pockets of Earth's atmosphere that vary in temperature and density
2012
pens won’t work in space.
Normal pens work by gravity pulling the ink towards the pen’s nib. As there’s no gravity in space, the ink doesn’t get pulled to the nib.
2020
Kangchenjunga, the tallest mountain until a survey of Everest, has never been fully climbed.
The first people to reach the top stopped short of the summit because they promised the ruler of Sikkim to keep the sacred mountain intact
2020
the first olympic marathon gold medalist told hittler that he hoped he won't start a war.
Hi brought him an olive tree branch instead of nazi waving.
2019
Astronauts can grow approximately 5 cm in height when in space.
The lack of gravity in space causes the discs between the vertebrae to expand a little.
2013
The International Space Station is the largest manned object ever sent into space.
The (ISS) sits roughly 250 miles (400 km) above the Earth and is the third-brightest object in the night sky.
2020
According to mathematics, white holes are possible, although we have found none.
A white hole is a hypothetical region of space-time which can’t be entered from the outside, although matter and light can escape from withi
2020
The Sun makes a full rotation once every 25 – 35 days.
one full rotation equals one full day. However, our gargantuan sun takes 25 – 35 Earth days to make one full rotation!
2020
The first ever black hole photographed is 3 million times the size of Earth.
The photo was released in April 2019 and shows a halo of dust and gas 310 million trillion miles from Earth.
2019
We know more about Mars and our Moon than we do about our oceans.
We have fully mapped 100% of the surface of Mars and Earth’s Moon, whereas we have only been able to map roughly 5% of the ocean floor.
2009
On Venus, it snows metal and rains sulfuric acid.
Venus is scorching hot and choked with sulfuric acid, which causes the planet’s metals to become gas and then liquid in the atmosphere
2013
