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.
Astronomers discovered a rare system containing two long-period planets
The frosty gas giant was discovered in a system that also hosts a warm Jupiter.
Biodiversity protects against invasions of non-native tree species
Which regions on Earth are most vulnerable to non-native tree invasions?
‘Planet within a planet’ revealed by research into Earth’s deep core
Seismologists probe Earth’s inner core.
Gaseous carbon dioxide can trigger explosive eruptions
The research offers a clearer picture of our planet’s deep internal dynamics and composition.
For the first time, a solar eruption detected simultaneously on Earth, the Moon, and Mars
Emphasizing the need to prepare human exploration missions for the dangers of space radiation.
NASA reestablishes full communications with Voyager 2
The probe is operating normally and remains on its expected trajectory.
Scientists identify the sun’s highest-energy light source
Sometimes, the best place to hide a secret is in broad daylight. Just ask the sun.
Earth’s most ancient impact craters are disappearing
Earth's earliest history still holds mysteries for geologists, and ancient craters could offer some answers.
Dune patterns show environmental changes on Earth and other planets
Analyze satellite photographs of 46 dune regions on Earth and Mars to understand sand exchange.
Solar shield tied to asteroid proposed as climate change solution
Tethered sun shield could allow cool the Earth.
Guidelines for extracting valuable materials from water
Extracting water resources enhances national security and the environment.