On October 4th 1957, the first artificial satellite – Sputnik 1- was launched into low Earth orbit as a part of Soviet space program.

Virgin Galactic: $ 250,000 for a 2 hour suborbital flight at 80 km altitude;Blue Origin: Approximately $ 300,000 for a 12-minute suborbital flight at 100 km altitude;Axiom Space: $ 55 million for a 10-day orbital flight;Space View: $ 125,000 for...

The element was first spectroscopically discovered in 1875 by the French chemist Paul Em Lecoque de Boyce Badrun. Slightly liquefies at ambient temperature. It is completely liquid when taken in one's hands. The main use of gallium is in semiconductors...

Paleontologists have identified the fossilized partial skeleton, a new species of bird that lived and became extinct 25 million years ago. Named Archaehierax sylvestris, it is the world's oldest eagle-like raptor. It has a foot span of about 15 cm...