Abstract: In this paper, we address a complex motion control problem of fast and precise positioning of the secondary mirror in a large radio telescope, which exhibits strong nonlinear behavior and is ...

Abstract: It has been in human nature to explore the vastness of the cosmos ever since time immemorial. The quest began with ancient men staring at the celestial bodies and now advanced telescopes are ...

The James Webb Space Telescope (JWST) took a beautiful infrared picture of the Butterfly Nebula, which is the remains of a dying star that was like the sun. Webb has found crystalline dust and organic ...

The National Solar Observatory on Mt. Haleakala recorded this high-resolution image of a solar flare on the sun. According to the observatory, the image is about four Earth-diameters on each side.

It’s been nearly 50 years since astronomers detected the most famous space signal we’ve ever received—a 72-second radio burst that lit up a printout at Ohio State’s Big Ear radio telescope in 1977.

President Donald Trump's administration is taking management of Union Station away from Amtrak in the latest example of the federal government exerting its power over the nation's capital.

Two more of NASA's space telescopes recently got another look at comet 3I/ATLAS, a captivating interstellar interloper that first captured the world's attention in July. The object – just the third ...

A comet known as 3I/ATLAS made news when it was confirmed to be the 3rd-ever object observed to have originated outside Earth's solar system. Though the object poses no threat to Earth, astronomers ...