Starting off with astronomical seasons, this system bases itself on the Solstices and Equinoxes that occur each year as Earth ...

Thursday is the first day of spring, or the vernal equinox, in the Northern Hemisphere. During an equinox, the center of the sun is on the same plane as the equator. After the vernal equinox in March, ...

The vernal equinox arrives on Thursday, March 20, officially marking the beginning of spring in the Northern Hemisphere and ...

Venus will pass between the Earth and sun on Saturday during what's called an inferior conjunction. But don't plan on seeing ...

The orbit Venus takes around the sun results in an inferior conjunction as it transitions from appearing in the evening sky to the morning sky.

There is both equal night and day on the equinox, as the center of the sun is directly over the equator. In Portland, the sun ...

NASA scientists are using airborne technology to track flowers from above, offering new insights into seasonal plant cycles.

Dozens of companies and academic groups are pitching the same theory: that sinking rocks, nutrients, crop waste or seaweed in ...

This advertisement has not loaded yet, but your article continues below.

Mar. 20, 2025 — Scientists will warn policymakers that the shrinking glaciers of the Andes threaten the water supply of 90 million people on the South American continent at the first-ever World ...