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Author: Astronomy Staff

Science, Solar System

MESSENGER spacecraft reveals a dynamic Mercury

Galaxies, Science

Resolving a galactic mystery

Galaxies, Science

Starbursts in dwarf galaxies are a global affair

Exotic Objects, Milky Way, Science

Rogue black holes may roam the Milky Way

Science, Solar System

Watching solar activity muddle Earth’s magnetic field

Science, Stars

Cosmic distance record smashed

Science

In stellar magnitude estimates, why do larger numbers represent dimmer objects? Shouldn’t it be the other way around?

Galaxies

How do the bars in barred spirals form?

Cosmology, Exotic Objects

Could large numbers of black holes account for much of the “dark matter” estimated to exist in our universe?

Solar System

Could the meteorite that formed the Hellas Basin on Mars have triggered the volcanic eruptions on the other side of the planet that created Olympus Mons?

Science

Ask Astro web extra: What is the difference between astronomy and astrophysics?

Observing

The constellation Ophiuchus lies partly on the ecliptic, so why isn’t it considered one of the zodiacal signs?

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