Astronomers use telescopes to look back in time and observe stars and galaxies as they were millions and billions of years ...

Einstein famously said, “Time is a tremendously persistent illusion.” In a 1955 letter, he added, “For those of us who believe in physics, the distinction between the past, present and future is only ...

The star system has been nicknamed the “Moth” because of its wing-like disk, visible in infrared observations, of leftover dust from the star’s formation that stretches outside the astrosphere. These ...