Euclid, a space telescope on a mission to uncover the secrets of dark matter and dark energy, has already made a stunning discovery: a perfectly formed Einstein ring hidden in a well-known galaxy.
These are known as hypervelocity stars, with some moving faster than the escape velocity of the Milky Way of around 600 kilometers (373 miles) per second. There is another star that is almost as ...
HD 20794 d is expected to be a focal point for upcoming projects like the Extremely Large Telescope, the Habitable Worlds Observatory, and the Large Interferometer For Exoplanets (LIFE). These ...