Every year, the moon, Earth's reliable celestial companion for 4.5 billion years, is getting 1.5 inches away. The distance to ...

God of Chaos asteroid Apophis will pass Earth on April 13, 2029, in a safe flyby. Three missions—ESA’s Ramses, JAXA’s DESTINY+, and NASA’s OSIRIS-APEX—will study the asteroid’s structure, orbit, and ...

Due to the influence the Earth plays on the moon’s momentum, the Earth’s rotation slows down in response, as explained by DiKerby. However, given that this is such a minor change in distance annually, ...

Imagine a massive celestial body colliding with Uranus at high speed; this impact could have 'overturned' Uranus, causing its ...

So the bottom line is that the gravity of the closer tidal bulge on the Earth is pulling the Moon forward, which increases the size of the Moon’s orbit. This means that the Moon gets slightly farther ...

Precise orbit determination (POD) is vital for satellite navigation, positioning, and timing services, especially as large Low Earth Orbit (LEO) constellations grow in scale. A new method integrates ...

CAPE CANAVERAL, Fla. (AP) - A day at Uranus just got a little longer. Scientists reported Monday that observations by the Hubble Space Telescope have confirmed it takes Uranus 17 hours, 14 minutes and ...

Astronomers have made the first measurement of spin-orbit alignment for a distant ‘super-Jupiter’ planet, demonstrating a technique that could enable breakthroughs in the quest to understand how ...

MESSENGER began its 2,000th orbit around Mercury earlier this week, on May 22. The spacecraft completed its primary mission on March 17, 2012, and its first extended mission on March 17, 2013. The ...

The winter solstice, famously the shortest day of the year, is nearly three weeks behind us. So why has the sun been rising later than it did on Dec. 21? Like much of our day and night cycles, the ...