HOME
Technology
Life
Discover science
Medicine - Health
Event
EntertainmentWhat is space-time?
People often consider space to be obvious. It is empty, the context for everything else. Time, likewise, is simply tickles.
Latest update
- Can carp live 10 years in a tank without feeding?
- Why do Italy and Switzerland have to redraw the border?
- Japanese bullet train accident-free for 60 years
- The world's most crowded apartment building: Can accommodate up to 30,000 people, the view inside is overwhelming
- World's oldest wine jar contains cremated human bones
- America catches strange signal from 1.3 billion light years away from Earth
- Two black holes closest to Earth discovered, of a kind never seen before
- Solar sails help spacecraft reach Mars in 26 days
Can carp live 10 years in a tank without feeding?
Why do Italy and Switzerland have to redraw the border?
Japanese bullet train accident-free for 60 years
The world's most crowded apartment building: Can accommodate up to 30,000 people, the view inside is overwhelming
World's oldest wine jar contains cremated human bones
America catches strange signal from 1.3 billion light years away from Earth
Two black holes closest to Earth discovered, of a kind never seen before
Solar sails help spacecraft reach Mars in 26 days
Useful software
New technology
Science invention
Computer science
AI - Artificial intelligence
Scientific application
Environment
Animal world
Biology
Alien
Doomsday
History
Space science
Archeology
Oceanography
World Heritage
World celebrity
Conquer Mars
1001 mystery
Health
Antibiotic resistance
Flu epidemic
Cancer
Food safety
Science Events
Scientific works
Science story
Videos
Photo library
Funny corner