Today In The Space World on MSN

We Found a New Planet in the Solar System

Astronomers have discovered 2017 OF21, a distant dwarf planet candidate located about 90 times farther from the Sun than ...

In another star system, a Pluto-like world survived until the bitter end

Normally when a medium-size star dies, it blasts away the bulk of material in its system. The Hubble discovery was surprising ...

What is the heliosphere? A new mission could unravel the mysteries of this complex cosmic environment

Created by the sun, the protective bubble of the heliosphere shields our solar system from harmful radiation. A new mission ...
New York Post

‘Earth-like’ Planet Nine could be hiding in our solar system: research

There may be another world lurking between the orbital lines of our solar system. Astronomers in Japan have published their theory of an “Earth-like planet,” dubbed Planet Nine, that’s hiding in plain ...

2 newly launched NASA missions will help scientists understand the influence of the Sun, both from up close and afar

On Sept. 24, 2025, NASA launched two new missions to study the influence of the Sun on the solar system, with further missions scheduled for 2026 and beyond.