Enjoying EarthSky? Subscribe.

237,987 subscribers and counting ...

Daniela Breitman

Why the New Year begins on January 1

We celebrate the New Year on January 1 for reasons that are mainly historical, not astronomical. And yet nature cooperates to make January 1 a satisfying time to start anew.

Today in science: Discovery of Ceres

Ceres was the first asteroid ever discovered, in 1801, and it’s still the largest body in the asteroid belt. Nowadays, we call it a dwarf planet, and a spacecraft has been orbiting it!

Today in science: Johannes Kepler

While trying to solve the mystery of the planets’ motions, Johannes Kepler made several false starts, then ultimately discovered 3 profound truths.

Today in science: Tycho Brahe

Tycho Brahe is known for his partying, his prosthetic nose, and for being one of the greatest astronomers of all time.

Today in science: Carl Sagan’s birthday

For many, Carl Sagan’s name was synonymous with astronomy. Today would have been his 82nd birthday.

Today in science: Edmond Halley

He’s the astronomer for whom Halley’s Comet is named. It was the first comet ever predicted to return.

Today in science: Discovery of Neptune

Neptune is the planet discovered with mathematics.

Today in science: Michael Faraday

Meet Michael Faraday, the man behind the electric motor and theory of electromagnetism.

Today in science: Great Moon Hoax

A series of 6 newspaper articles in 1835 about the discovery of life on the moon (including bat-men and unicorns), supposedly made by famous astronomer.

Today in science: Pluto the dwarf planet

August 24, 2016 is the 10th anniversary of astronomers’ announcement of Pluto’s demotion to dwarf planet. The decision caused a shock wave around the world.