by Ethan Siegel, Forbes
Astronomically, bodies within the Solar System must achieve three criteria in order to gain the much-vaunted status of planet:
- Gravitationally pull themselves into a spheroidal shape, where they obtain hydrostatic equilibrium,
- Orbit the Sun in an ellipse and no other smaller, parent body,
and clear their orbit of any substantially-massed objects.
Continue reading These Are The 10 Largest Non-Planets In Our Solar System
by David Freeman, NBC News/MACH
The pinkish dwarf planet is more than 100 times farther from the sun than Earth is — and almost four times more distant than Pluto.
Astronomers said Monday they had discovered the most distant object ever seen in the solar system — and it’s so far away that they nicknamed it “Farout.”
Continue reading Scientists discover ‘Farout,’ the most distant solar system object ever seen
by Colm Gorey, siliconrepublic
The search for extraterrestrial life will continue not just on the surfaces of planets, but deep within their icy cores.
For decades, rovers and landers on planets such as Mars have either examined or roamed the surface to find evidence for flourishing microbial life, or at least the ancient remnants of it. However, this could be all about to change with the development of a new robot that can burrow deep within a planet’s surface.
Continue reading Futuristic, nuclear ‘tunnelbot’ aims to solve solar system mystery
by Johns Hopkins University, Phys.org
The speed and distance at which planets orbit their respective blazing stars can determine each planet’s fate—whether the planet remains a longstanding part of its solar system or evaporates into the universe’s dark graveyard more quickly.
Continue reading Hubble finds far-away planet vanishing at record speed