This Week in Astronomy | Page 8 of 12 | Astronomy.com

The sandy red orb of Mars is shown against a black background. Numerous dark regions are scattered across its surface, and the bright, white northern polar ice cap is visible at the top of the image.

Science, Solar System

Where did Mars’ water go? This Week in Astronomy with Dave Eicher

Against a pitch black background, the Sun glows as a bright orange disk speckled with darker regions of sunspots and bright filaments of gas snaking across its surface and off of its edges.

How the Sun will die: This Week in Astronomy with Dave Eicher

Observing, Upcoming Events

See Saturn skim past the Moon: This Week in Astronomy with Dave Eicher

Observing, Upcoming Events

Catch the Quadrantids meteor shower: This Week in Astronomy with Dave Eicher

Cosmology, Science

How large is the universe? This Week in Astronomy with Dave Eicher

Upcoming Events

Take in the Orion Nebula: This Week in Astronomy with Dave Eicher

Upcoming Events

See the Geminids: This Week in Astronomy with Dave Eicher

Deep-Sky Objects

Explore the Pleiades: This Week in Astronomy with Dave Eicher

The awakening of astronomy: This Week in Astronomy with Dave Eicher

How the exoplanet field exploded: This Week in Astronomy with Dave Eicher

Upcoming Events

Spot some Leonid meteors: This Week in Astronomy with Dave Eicher

The Andromeda Galaxy is the nearest large galaxy to us. Credit: Massimo Di Fusco

Cosmology, Deep-Sky Objects

How Edwin Hubble unlocked the cosmos: This Week in Astronomy with Dave Eicher