Early in the history of our solar system, something mysteriously knocked Earth slightly off its axis. So today we tilt ... parts of the planet toward the sun at different times of the year.

The Earth's axis is tilted at an angle ... is tilted towards the Sun - this gives us longer days and means the Sun's rays are more direct, stronger and warmer. Autumn is when the northern ...

The vernal equinox, which occurs at the start of astronomical spring, is when the sun's rays equally shine on both of the Earth's hemispheres. Thursday marks the vernal equinox, or the first day of ...

So why has the sun been rising later ... while it spins on its axis (rotates) at roughly the same speed as any other day. Therefore, a given point on Earth — Indianapolis, for example ...

the precession of its rotational axis and the shape of Earth's orbit around the sun. Breaking space news, the latest updates on rocket launches, skywatching events and more! Obliquity refers to ...

The vernal equinox, which occurs at the start of astronomical spring, is when the sun's rays equally shine on ... two times of the year when the Earth's axis is tilted neither toward nor away ...

The vernal equinox, which occurs at the start of astronomical spring, is when the sun's rays equally shine on both of the ... There are only two times of the year when the Earth's axis is tilted ...