As the second closest planet in the solar system, Mars is always between 55 million and 400 million kilometers away from Earth, and it will take at least half a year for a probe or future manned spacecraft to travel to Mars. When Venus, the closest planet to the earth, is unable to be explored …
The Webb Space Telescope, a $10 billion telescope that is currently 1.6 million kilometers from Earth, has been tapping away since it finished commissioning. From the initial infrared test images, to the Weber Deep field and colored nebulae, to the vastly different colors of Jupiter, the quality of the images returned by Weber was far …
For nearly a century, scientists around the world have been searching for signs of alien civilizations, but have found none. The universe is 93 billion light years old, containing trillions of stars and countless planets. The solar system and the Earth are small and common in the universe, but only the Earth gave birth to …
Can the diamond ring be recycled? Where is it reliable?
What activities can Mother's Day do? It is best to be more new ~~
