Long ago, the Moon was much nearer Earth. Scientists believe a protoplanet collision created the Moon 4.5 billion years ago.

Today, Sept. 8, 2025, the moon is 16 days old and is in the Full Moon phase of its lunar cycle. It is 99% illuminated.

The autumn night sky in Ireland is an observer's treasure-trove and the first celestial event of the season arrives on September 7 with a lunar eclipse and blood moon ...

As Earth moves through space, it wobbles slightly. A team of researchers from the Technical University of Munich (TUM) and the University of Bonn has now succeeded in measuring these fluctuations in ...

The winners of the 2025 ZWO Astronomy Photographer of the Year Award have been revealed, showcasing a spectacular selection ...

The Moon is getting 1½ inches (3.8 centimeters) farther away from the Earth every year. Scientists measure the distance to the Moon by bouncing lasers off mirrors placed there by space probes and ...

The moon's gravity causes high and low tides, something known as the tidal force. As the tidal force shifts Earth's mass, it ...

Over millennia, our view of the stars has shifted, because of Earth’s wobble. It may be time to rethink your sign.

Fall equinox 2025 arrives on Monday 22. Find out why the first day of autumn still features a little more daylight than ...

Scientists in Germany have used a highly sensitive underground ring laser to track Earth's axial wobble without relying on telescopes, satellites, or external reference signals. The researchers from ...

Day and night will get equal time for a brief moment as the equinox arrives. The Earth will experience about the same amount of day and night on Monday when the autumnal equinox arrive. From ...