Greetings stargazers. Occasionally, the calendar aligns so that I get to complain about daylight saving time in this column on the same weekend it goes into effect. I need to take the chance to do ...

HONOLULU (HawaiiNewsNow) - After 20 years of research, an international team of researchers led by a UH Hilo professor made a surprising discovery. Pierre Martin and has team have been studying a ...

Scientists have clocked the speed of Cepheid stars -- 'standard candles' that help us measure the size of the universe -- with unprecedented precision, offering exciting new insights about them.

Add Yahoo as a preferred source to see more of our stories on Google. An image of the Cepheid variable star RS Puppis. An image of the Cepheid variable star RS Puppis. The most accurate observation to ...

This Hubble Space Telescope image shows RS Puppis, one of the most luminous Cepheid variable stars. It rhythmically brightens and dims over a six-week cycle. (ASA, ESA, Hubble Heritage Team ...

Studying pulsing Cepheid stars offers a cosmic yardstick by which to measure the universe. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

Spiral galaxy NGC 5584, which resides 72 million light-years away, contains pulsating stars called Cepheid variables. The universe is expanding—but astronomers can’t agree how fast. And NASA’s ...

Taking advantage of the presence of light echoes, a team of astronomers have used an ESO telescope to measure, at the 1% precision level, the distance of a Cepheid - a class of variable stars that ...