Earth
Earth is the third planet from the Sun and the fifth largest planet in the solar system in terms of mass and size.
The only celestial object that has an outstanding characteristic to host life. 29.2% of the Earth’s surface is land, and the remaining 70.8% is covered by water. Earth’s atmosphere consists mainly of nitrogen and oxygen.
The Earth orbits the Sun once every 365.25 days; meanwhile, it rotates around an imaginary line called an axis that runs from the North Pole to the South Pole. It takes 23.934 hours to complete one revolution on its axis.
Scientists measured the gravitational redshift of the Sun
New measurements of the solar spectrum verify Einstein’s theory of General Relativity.
Scientists identified 24 superhabitable planets outside our solar system
Some of these orbit stars that may be better than even our sun.
Venus might be habitable today, if not for Jupiter
Study shows destabilizing effect of the giant gas planet.
Scientists confirmed coldest Northern Hemisphere temperature
It happened nearly 30 years ago.
Earth’s early microbes relied on arsenic to exist
The findings give a strong sense of the early conditions of Earth.
Astronomers discovered a ‘pi-Earth’ that has a period of 3.14 days
The rocky world, with its baking-hot surface, is likely not habitable.
Electrons in the radiation belts can be accelerated to very high speeds
Giant particle accelerator in the sky.
Earth’s oxygen rusted the Moon for billions of years
Earth may have played an important role in the evolution of the Moon’s surface.
Exploring the origin of chemically distinct ‘scars’ of mantle
The composition of Earth’s mantle was more shaped by interactions with the oceanic crust than previously thought.