Achernar marks the End of the River

Achernar is the 9th brightest star and flattest star known. It marks the end of Eridanus the River. Here's why much of Earth never sees it ... and how you can.

Meet Hamal, an ancient equinox star

Meet Hamal, the brightest star in Aries, and learn why people sometimes refer to the March equinox point as the First Point in Aries.

Algol is the Demon Star

What's the scariest star in all the heavens? Look for Algol the Demon Star on autumn evenings. It's a great choice for a driveway telescope night on Halloween.

Deneb Kaitos marks the tail of Cetus

Deneb Kaitos is the brightest star in the constellation Cetus the Whale. It's at its highest in the sky on October and November evenings.

Delta Cephei helps measure cosmic distances

Delta Cephei is an inconspicuous variable star in the northern constellation Cepheus the King. This star helps establish the cosmic distance scale.

Gamma Cephei, aka Errai, a future North Star

Gamma Cephei - or Errai - is a binary star system that will someday be Earth’s North Star. Gamma Cephei is home to the first exoplanet ever discovered.

Alpha Cephei, a fast-spinning star

Alpha Cephei, in the constellation Cepheus the King, is a bit of an enigma. It’s spinning so fast that it appears like a slightly flattened beach ball.

Fomalhaut, loneliest star, near Jupiter and Saturn in 2021

Fomalhaut is known as the “lonely one” or the "solitary one" as it shines brightly in a patch of sky with no other bright stars nearby.

Why 61 Cygni is nicknamed Flying Star

Compared to other stars, 61 Cygni moves quite rapidly against the background of more distant stars, revealing its proximity to Earth.

See Mira the Wonderful at its brightest

Catch elusive wonderful Mira, a famous variable star in the constellation Cetus, at its maximum brightness in August 2021. Now you see it ... now you don't!