earth
Latest about earth
Have all 8 planets ever aligned?
By Charles Q. Choi published
The solar system's eight planets will never truly be in a straight line, but they can get close to it.
Every 2.4 million years, Mars tugs on Earth so hard it changes the ocean floor
By Emily Cooke published
A new geological study suggests that Mars' gravitational field pulls the Earth closer to the sun over cycles lasting millions of years, warming our climate.
Widespread solar storm struck spacecraft near the sun, Earth and Mars in quick succession
By Meredith Garofalo published
In 2021, a solar storm was recorded by multiple different spacecraft and the results tell quite the story.
Passing stars may have changed Earth's orbit and climate, study finds
By Abha Jain published
Passing stars may have altered Earth's orbit, and its climate, many times throughout cosmic history. New research digs into what that means when it comes to understanding our planet's past.
Could mini space-grown organs be our 'cancer moonshot'?
By Emily Cooke published
Scientists say they're growing "organoids" in space to better understand cancer, neurological diseases and aging, and to hopefully uncover treatments.
Big, dead European satellite will come crashing back to Earth this month
By Mike Wall published
The uncontrolled reentry of Europe's defunct ERS-2 satellite is expected in mid-February. It's highly likely that the 5,000-pound craft will land somewhere in the ocean.
Why don't we feel Earth spinning?
By Ashley Hamer published
Earth moves around the sun at 67,000 mph and makes a full rotation once every 24 hours. So why can't we feel the Earth's rotation?
Watch 'city killer' asteroid fly by Earth today on its closest approach for centuries (Feb. 2)
By Harry Baker last updated
A "potentially hazardous" space rock the size of a football stadium is about to reach its closest point to our planet for more than 100 years, and it won't get this close to us again for centuries more.
Airplane-size asteroid will have 'very close encounter' with Earth on Saturday — and you can watch it happen
By Sascha Pare last updated
Asteroid 2024 BJ, which astronomers detected earlier this month, will zoom within 220,000 miles of Earth tomorrow, or closer to us than the average distance to the moon.
Will the Doomsday Clock stand still or creep closer to midnight? Here's how to watch the reveal on Tuesday.
By Sascha Pare published
Watch the Bulletin of the Atomic Scientists' annual Doomsday Clock announcement to find out if 2024 is the year we creep closer than ever to a human-made apocalypse.
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