Tag: earth

Asteroid impact threat estimates improved for the Earth and the moon

Asteroid 2024 YR4, first discovered in December 2024, triggered a first-ever notification from the International Asteroid Warning Network (IAWN) on January 29, 2025. The...

Early Earth’s first crust composition discovery rewrites geological timeline

Researchers have made a new discovery that changes our understanding of Earth's early geological history, challenging beliefs about how our continents formed and when...

Earth 1, asteroids 0: The next generation of planetary defense takes shape at NASA’s Jet Propulsion Laboratory

There is a non-zero chance that somewhere in the nearby solar system is a rock that might kill us all. This stony assassin may well...

New research sheds light on earliest days of Earth’s formation

New research led by a York University professor sheds light on the earliest days of Earth's formation and potentially calls into question some earlier...

‘Mars and Earth are even more different than we thought’: Condensing 20 years of atmospheric wave observations

For the first time on a global scale, 20 years of observations on Mars have been condensed into a single study led by Francisco...

Remember that asteroid that isn’t going to hit Earth? We could send a mission to explore it

Last year, astronomers detected the near-earth asteroid (NEA) 2024 YR4, which orbits the sun every four years and periodically crosses Earth's orbit. The nature...

Volcanic activity billions of years ago set the stage for Earth’s oxygen-rich atmosphere, research suggests

It is widely believed that Earth's atmosphere has been rich in oxygen for about 2.5 billion years due to a relatively rapid increase in...

Can surface fractures on Earth, Mars, and Europa predict habitability on other planets?

When a mudflat crumbles on Earth, or an ice sheet splinters on one of Jupiter's moons (Europa), or an ancient lakebed breaks on Mars,...

Melting Antarctic ice sheets are slowing Earth’s strongest ocean current, research reveals

Melting ice sheets are slowing the Antarctic Circumpolar Current (ACC), the world's strongest ocean current, researchers have found. This melting has implications for global...

Scientists match Earth’s ice age cycles with orbital shifts

Beginning around 2.5 million years ago, Earth entered an era marked by successive ice ages and interglacial periods, emerging from the last glaciation around...

Solar system’s journey through Orion complex 14 million years ago may have altered Earth’s climate

An international research team led by the University of Vienna has discovered that the solar system traversed the Orion star-forming complex, a component of...

Laser-powered device tested on Earth could help detect microbial fossils on Mars

The first life on Earth formed four billion years ago, as microbes living in pools and seas: what if the same thing happened on...

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