Read Illustration showing how Earth's tilt leads to the Northern and Southern Hemispheres receiving changing amounts of ...

The Sun's activity typically peaks at solar maximum, but there's an even more dangerous stage it could enter, and with ...

Look west and see the sun set. Look east, the full moon rises. Seeing this phenomenon is impressive, but not unique, according to the Journal's astronomy expert, Kevin McKeown. In April, September, ...

As sunspots emerge on the sun's surface close to its equator, their orientations will match the old magnetic field, while sunspots forming closer to the poles will have a magnetic field matching ...

After a mild weekend, much-needed rain showers arrive late Sunday, followed by a cooldown and then a mid-week return to April ...

The sun has an orbit of its own in the Milky Way ... At its strongest point, which is at the equator, centripetal acceleration only counteracts Earth's gravity by about 0.3 percent.

Expect an uptick in aurora sightings near the spring equinox on March 20, as celestial geometry swings in favor of ...

For the past four months, we’ve been on standard time. But overnight Saturday, we’ll turn our clocks ahead one hour at 2 a.m.

Some parts of the planet get more direct sun than others. That's how we get our seasons, and how it can be summer in the Northern Hemisphere while it's winter in the Southern Hemisphere.

Equator, a climate tech VC firm, closes first fund at $55 million to support seed and Series A startups in energy, ...

We are almost there, folks. As we speak, the sun’s subsolar point is racing northward, toward the celestial equator. In about a week, the vernal equinox will finally bring the official start of ...

The first day of spring astronomically is March 20 and meteorologically is March 1. Astrological spring is tied to the rotation of the Earth and the exact moment the sun crosses the Equator. The ...