×
GreekEnglish

×
  • Politics
  • Diaspora
  • World
  • Lifestyle
  • Travel
  • Culture
  • Sports
  • Cooking
Monday
13
Jul 2026
weather symbol
Athens 33°C
  • Home
  • Politics
  • Economy
  • World
  • Diaspora
  • Lifestyle
  • Travel
  • Culture
  • Sports
  • Mediterranean Cooking
  • Weather
Contact follow Protothema:
Powered by Cloudevo
> World

8.8 billion habitable Earth-size planets exist in Milky Way alone!

A rather crowded neighborhood...

Newsroom May 18 09:41

Δείτε περισσότερα άρθρα μας στα αποτελέσματα αναζήτησης

Add Protothema.gr on Google

Space is vast, but it may not be so lonely after all: A study finds the Milky Way is teeming with billions of planets that are about the size of Earth, orbit stars just like our sun, and exist in the Goldilocks zone — not too hot and not too cold for life.

Astronomers using NASA data have calculated for the first time that in our galaxy alone, there are at least 8.8 billion stars with Earth-size planets in the habitable temperature zone.

The study was published Monday in the journal Proceedings of the National Academy of Sciences.

For perspective, that’s more Earth-like planets than there are people on Earth.

As for what it says about the odds that there is life somewhere out there, it means “just in our Milky Way galaxy alone, that’s 8.8 billion throws of the biological dice,” said study co-author Geoff Marcy, a longtime planet hunter from the University of California at Berkeley.

See Also:

Turkey’s recruitment of Syrian mercenaries to fight in Libya: Process & legal consequences

>Related articles

Greece unveils national AI Act framework: what changes for citizens, businesses and government

UK: Reform UK Immigration spokeswoman Ann Widdecombe murdered

Galibaf’s Message to the US: The war in the Middle East will never end with Iran’s surrender

The next step, scientists say, is to look for atmospheres on these planets with powerful space telescopes that have yet to be launched. That would yield further clues to whether any of these planets do, in fact, harbor life.

The findings also raise a blaring question, Marcy said: If we aren’t alone, why is “there a deafening silence in our Milky Way galaxy from advanced civilizations?”

Read more: nbc

Ask me anything

Explore related questions

#astronomy#astrophysics#exoplanets#galaxy#habitable#life#Milky Way#physics#planets#science#space#space exploration#technology#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

Intense meltemi winds set to intensify as wildfire risk rises, no heatwave in sight

July 13, 2026

Europe’s June heatwave linked to more than 10,000 excess deaths, EuroMOMO data shows

July 13, 2026

Greece’s demographic ‘bomb’: Births drop 44% in two decades

July 13, 2026

Veteran New Zealand actor Sam Neill dies aged 78

July 13, 2026

Female suspect from Marfin Bank terror attack case arrested in Britain

July 13, 2026

Tourism heads for a record, Tsipras… switches sides on Molotov cocktails, Samaras and the blessing of Nea Ionia, the Niarchos daughter’s gallery, and the Greeks’ deals at sea

July 13, 2026

Plastics, chemicals and sunscreen filters linked to early puberty in girls, new study finds

July 13, 2026

New revelations over cancelled Balogun red card: FIFA disciplinary committee chairman acted alone, The Times reveals

July 13, 2026
All News

> Greece

In reverence, the emotional deposition in Jerusalem, see photos & video

The Holy Temple of the Resurrection opened after many days due to the war between Israel and Iran

April 10, 2026

In the final stretch for the accreditation of joint master’s degrees: Aiming for their launch in the coming academic year

April 10, 2026

Schedule for Epitaph Procession today (10/4)

April 10, 2026

Perfect weather for Easter excursions, according to Tsatrafyllia’s forecast

April 10, 2026

Easter in Greece: The customs that continue in Greek tradition – From Nafpaktos to Corfu

April 10, 2026
Homepage
PERSONAL DATA PROTECTION POLICY COOKIES POLICY TERM OF USE
Powered by Cloudevo
Copyright © 2026 Πρώτο Θέμα