×
GreekEnglish

×
  • Politics
  • Diaspora
  • World
  • Lifestyle
  • Travel
  • Culture
  • Sports
  • Cooking
Friday
22
Aug 2025
weather symbol
Athens 30°C
  • Home
  • Politics
  • Economy
  • World
  • Diaspora
  • Lifestyle
  • Travel
  • Culture
  • Sports
  • Mediterranean Cooking
  • Weather
Contact follow Protothema:
Powered by Cloudevo
> World

Mysterious Earth-sized planet could be hiding in plain sight in our Solar System

If such a planet exists, researchers say it would have a mass about 1.5 to...3 times that of Earth!

Newsroom September 6 11:17

Astronomers have found likely evidence of an Earth-like planet in the Solar System that may be circling the Sun in an orbit beyond Neptune.

Physicists, including those from the National Astronomical Observatory of Japan, said the planet could be much closer than the hypothetical Planet Nine thought to exist in the far outer edges of the Solar System.

Several studies in the past have suggested there is likely a yet-undiscovered planet beyond the Kuiper Belt – a stellar disk of materials such as asteroids, space rocks, comets around the Sun in the outer Solar System past the orbit of Neptune.

See Also:

>Related articles

Libya: Rocket explodes next to UN mediation mission building in Tripoli

Global race for hypersonic missiles – The two superweapons that Putin says will turn every target to ashes (video)

NYT: Suspected fraud among Trump’s daughters-in-law – €2.5m overcharge for superyacht Solstice built in Perama

Cracking the code to discover ancient Tarot symbolism & forgotten universal knowledge

In the new research, published recently in The Astronomical Journal, scientists found that some of the objects in the Kuiper Belt behave in a way indicative of the presence of a small planet among them.

Continue here: The Independent

Ask me anything

Explore related questions

#earth#mysterious#Nibiru#planet#science#solar system#space#universe#world
> More World

Follow en.protothema.gr on Google News and be the first to know all the news

See all the latest News from Greece and the World, the moment they happen, at en.protothema.gr

> Latest Stories

Italy – Greece 59-65 (4th quarter): Live the friendly match for the “Acropolis” tournament – Video

August 22, 2025

The secrets of Greeks who live long and well – The profile of centenarians and Life expectancy by region

August 22, 2025

Tom Greenwood’s quad bike crash in Mykonos — How the serious accident happened

August 22, 2025

Canada to lift retaliatory tariffs on U.S. goods starting September 1

August 22, 2025

Strong passenger traffic at the ports of Piraeus, Rafina and Lavrio on the four days 22 – 25 August

August 22, 2025

Patmos wastewater plant out of order: Sewage flows into the sea and household taps — See video and photos

August 22, 2025

Greece and 24 other countries condemn Israeli settlements east of Jerusalem – Joint statement calls for immediate withdrawal of the plan

August 22, 2025

Satellite data reveal: Significant increase in ground temperature after the fires in Kato Achaia and Patras

August 22, 2025
All News

> Greece

Tom Greenwood’s quad bike crash in Mykonos — How the serious accident happened

Volt CEO Tom Greenwood suffers life-threatening injuries in a Mykonos ATV crash. The accident highlights once again the deadly risks of quad bikes on Greek islands

August 22, 2025

Strong passenger traffic at the ports of Piraeus, Rafina and Lavrio on the four days 22 – 25 August

August 22, 2025

Patmos wastewater plant out of order: Sewage flows into the sea and household taps — See video and photos

August 22, 2025

Greece and 24 other countries condemn Israeli settlements east of Jerusalem – Joint statement calls for immediate withdrawal of the plan

August 22, 2025

Satellite data reveal: Significant increase in ground temperature after the fires in Kato Achaia and Patras

August 22, 2025
Homepage
PERSONAL DATA PROTECTION POLICY COOKIES POLICY TERM OF USE
Powered by Cloudevo
Copyright © 2025 Πρώτο Θέμα