Mercury has long baffled astronomers because it defies much of what we know about planet formation. A new space mission ...

The moon and sun share top billing in 2026. Kicking off the year's cosmic wonders is the moon, drawing the first astronauts ...

Venus enters Capricorn on Dec. 24, which offers a chance to ground and solidify your personal and professional relationships.

Pluribus imagines Kepler-22b as an ocean world that sends a gift to humanity through radio waves. In real life, no such ...

On Dec. 24, 1978, Venera 11 landed on Venus. Venera 11 was a robotic mission launched by the Soviet Union to explore Venus ...

Venus has been stealing the twilight show, glowing so fiercely that it can look like a misplaced aircraft or a distant beacon ...

From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.

Across the Milky Way and beyond, planetary systems appear to fall into a few recurring blueprints, and recent exoplanet ...

The year also features prime aurora viewing in January and two supermoons.

Mars and Venus, two planets with distinctly unique characteristics, also differ significantly in their placement within the ...