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Swarm of stealth 'city killer' asteroids poses 'invisible threat' as simulations show collision course with Earth
Scientists have discovered that hidden "city killer" asteroids orbiting alongside Venus could pose an "invisible threat" to ...
June offers skywatchers worldwide rare views of the Milky Way’s illuminated heart; Here is how to spot it with naked eyes
In June 2025, skywatchers can witness the Milky Way's central bulge. NASA highlights this event, best viewed from dark ...
MAVEN Reveals How Mars Lost Its Atmosphere and Became a Barren World
NASA’s MAVEN spacecraft has observed atmospheric sputtering on Mars for the first time, confirming how solar wind stripped the Red Planet’s thick atmosphere and transformed its climate.
City-killer asteroids orbiting near Venus could someday hit Earth without warning, says study
These 20 "city killer" asteroids, each over 140 metres in size, could potentially be on a future collision course with Earth.