The southern autumn night sky is often referred to as the “wet quarter” because that’s where we find such constellations as Aquarius the Water-bearer; Pisces the Fish; and, most notorious of all, ...

As scientists tried to comprehend the life cycle of a star, it became clearer that a star’s behavior is related to its age. For instance, a red giant star whose light changes by more than 1 magnitude, ...

Astronomers using the Swiss 1.2-metre Euler telescope at ESO’s La Silla Observatory in Chile have found a new type of variable star. The discovery was based on the detection of very tiny changes in ...

Sparkling with an exceptional blue-toned brilliance and exhibiting wild variations in both brightness and spectrum, the luminous blue variable (LBV) is a relatively rare and still somewhat mysterious ...

(Phys.org)—A new magnetic cataclysmic variable (CV) star has been detected by astronomers in the constellation of Draco. The newly found object, designated DDE 32, exhibits a large amplitude ...

Astronomers have found a new type of variable star. The discovery was based on the detection of very tiny changes in brightness of stars in a cluster. The observations revealed previously unknown ...

An international team of astronomers has analyzed the data from long-term multiwavelength monitoring of a distant blazar known as OP 313. Results of the new study, published January 18 on the arXiv ...

Yardsticks are very useful around the house when you need a measurement. (I have also used them to fish out toys the cat knocked under a low piece of furniture.) They are standards by which we can ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Late autumn is an excellent time to observe four of the most variable stars in the sky: Mira, ...

Get unlimited access to ad-free articles and exclusive content. Space.com A previously unknown kind of variable star is on brilliant display 7,000 light-years from Earth in a new photo taken by a ...