The Solar System | Page 4 of 9 | Astronomy.com

Now far from the Sun in the outer solar system, the strange interstellar object known as ‘Oumuamua is depicted here as it’s approached by a questing spacecraft. Project Lyra is hoping to launch such a craft to explore our first known visitor from another solar system and provide the detailed study scientists desperately seek.

Exotic Objects, Space Exploration

‘Oumuamua: Can we catch an interstellar interloper?

A color image of Pluto shows its heart-shaped section.

Science, Solar System

Is Pluto a planet? It depends.

Venus, the star Regulus, the Moon, Mars, and Mercury seen over the Badlands in South Dakota on Sept. 18, 2017. Credit: Gregg Alliss.

Astronomy for beginners, Science, Solar System

What it means for planets to align

HST image of Jupiter near opposition

Science, Solar System

How old is each planet in our solar system?

Artist's concept of Planet X

Could we find Planet Nine using JWST?

Hypothesized Planet Nine (artwork)

Does Planet Nine exist? The new evidence says yes.

Location of Jupiter's Trojan asteroids

How closely packed are Jupiter’s Trojan asteroids?

A volcano towers over its surroundings, the terrain shown in false-color yellows and oranges.

Science, Solar System

How Venus threw up on itself: This Week in Astronomy with Dave Eicher

Science, Solar System

The story of Percival Lowell: This Week in Astronomy with Dave Eicher

New moons of Uranus and Neptune discovered

These are the ways our world will end

Science, Solar System

How life on Earth will end: This Week in Astronomy with Dave Eicher