Most stars exist in binary or triple star systems. It is hypothesized that up to 85% of stars are gravitationally bound to another star in a multiple star system. Therefore, solitary stars (such as the Sun) are actually not the norm in the universe, but in fact are a rarity.
In 1995, NASA astronomer Bob Williams wanted to point the Hubble telescope at the darkest part of the sky for 100 hours. Critics said it was a waste of valuable time, and he’d have to resign if it came up blank. Instead it revealed over 3,000 galaxies, in an area 1/30th as wide as a full moon.
There is liquid water on Mars. The watery area in question is about 20 kilometers in diameter, and while depth can’t be determined, the deposit would likely have to be at least a meter thick to produce the reflection observed. So at a bare minimum we’re probably looking at a serious quantity of water, on the order of millions of liters.
“It’s not anything you’d want to swim in — negative 80 degrees Fahrenheit, or negative 60 Celsius, and probably more of a thick sludge subsiding here and there into “brine pools.” If I’m not mistaken you’d probably also be crushed like a bug if you weren’t inside some kind of pressure vessel. Still — it’s liquid water. On Mars. Today.”
The International Space Station (ISS) can orbit “straight through” an aurora event. When it happened on 23 February 2016 Timothy Peake, a European Space Agency (ESA) astronaut aboard the ISS, said it was “eerie but very beautiful.”
In 1920, The New York Times ridiculed Robert H. Goddard and claimed that rockets could not function in space. On July 17, 1969, a day after the Apollo 11 launch, NYT formally acknowledged their error.
In Interstellar the depiction of a black hole required completely new CGI rendering software and was so accurate that it provided enough scientifical insight to publish three scientific papers.
According to scientific predictions, the Milky Way will collide with the Andromeda Galaxy within 4 billion years, creating a hybrid galaxy dubbed “Milkomeda”.
3 billion years ago, 2 black holes 19 and 31 times the mass of the sun collided, creating a monstrous black hole and rippling the fabric of spacetime.
The star Mira has a surface that pulsates in such a way as to increase and decrease its brightness over periods ranging from about 80 to more than 1,000 days. This means sometimes the star is incredibly dim, while other times it is one of the brightest stars in its constellation.
There is so much space debris in earth’s atmosphere that in future it may just become dangerous to leave earth and we may get trapped in our own garbage.