Space science
Asteroid the size of a blue whale approaches Earth
An asteroid at least the size of a blue whale will pass by Earth at more than 26,000 km/h, according to NASA.
Distance
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Articles about Distance
438 published items.
Science story
Why do people see mountains in the distance blue?
Although purple light is the light with the shortest wavelength, blue light is the light that people see most when looking away from the mountains.
Space science
NASA warns: 'Something strange is happening to our universe'
Scientists at the US National Aeronautics and Space Administration (NASA) are studying new data from the Hubble space telescope and say something strange is happening to…
New technology
Microwave wireless power transmission technology
The US Naval Research Laboratory (NRL) successfully transmitted 1.6 kW of electricity over a distance of one kilometer using a microwave beam from its facility in Maryla…
Discover science
China sets a 100km . quantum communication record
Chinese scientists perform quantum secure direct communication (QSDC) over the world's longest distance.
Science story
KIA's 'bizarre' experiment: If you ride an electric car and listen to this song, your battery will soon run out
KIA's interesting test results in how a song can affect a person's driving style.
Space science
Astronomers have narrowed down the location of the most mysterious planet in the Solar System
Now, astronomers are edging closer to uncovering one of the biggest mysteries in decades - the ninth planet in the Solar System - a giant planet, which may be orbiting t…
Archeology
Hydraulic telegraph: Ancient means of long-distance communication
In the 4th century BC, a Greek named Aeneas invented a hydraulic telegraph that could help people communicate over long distances. The way to make and operate this devic…
Space science
Spacecraft photographed giant eruption on the Sun
The Solar Orbiter of NASA and ESA tracks the eruption on the Sun's surface from a distance.
Discover science
If the sun was replaced by a Rigel for 1 second, what would happen on Earth?
Everything on sunny ground will burn up, houses, roads, forests, rivers, oceans will instantly evaporate, and the atmosphere will be swept away.
Space science
An asteroid the size of a bus will reach Earth in early 2022
Recently, scientists predicted an asteroid will reach Earth in early 2022. However, they also think it does not pose a danger to our planet.
Space science
Method of measuring distances to stars and galaxies
Looking at a star in the sky, which appears only as a small bright dot and estimates its distance, seems very vague.
Animal world
Why do migratory birds often have lighter feathers than usual?
Migratory birds make their own adjustments, especially over extreme long distances.
Funny corner
World record for railway lines in the world
Here are a few interesting facts about the world's railway lines, from the highest, deepest, to the longest in the world, crossing two continents.
Space science
Giant asteroid 600 times stronger than nuclear bomb is about to fly past Earth
According to observers, the asteroid, named 2018 AH, will pass by Earth on December 27.