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Astronomers discover a cosmic 'fossil' at the edge of our solar system. Is this bad news for 'Planet 9'?
"It is possible that a planet once existed in the solar system but was later ejected, causing the unusual orbits we see today ...
Astronomers capture birth of a new solar system around sun-like baby star
Astronomers have discovered the earliest seeds of planets forming around HOPS-315, a baby star located 1,300 light-years away ...
Scientists spot start of a new solar system for first time
It's the earliest stage of planet formation ever seen by scientists. The new planetary system is taking shape around HOPS-315 ...
Astronomers capture the birth of planets around baby sun outside our solar system
CAPE CANAVERAL, Fla. -- Astronomers have discovered the earliest seeds of rocky planets forming in the gas around a baby ...
Here's how a star beyond Earth's sun could offer a 'picture of the baby solar system'
International astronomers have for the first time witnessed the birth of a planetary system beyond Earth's sun that could one day resemble our own.
Our solar system has a new mysterious visitor—what is it?
Just the third-ever confirmed interstellar object has been detected in our solar system. Here's what we know. (Spoiler: It's not aliens.) ...
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A Solar System Internet? Space Laser Test Moves Us Closer
The deep-space optical communication link could revolutionize how scientists communicate with spacecraft as they explore the ...
It Came From Outside Our Solar System, and It Looks Like a Comet
I/ATLAS, earlier known as A11pI3Z, is only the third interstellar visitor to be discovered passing through our corner of the ...
Two meteorites found in the Sahara could be from the solar system’s least studied rocky planet, scientists say
Two meteorites found in the Sahara in 2023 might be from Mercury, a study suggests, but doubts remain due to how little is ...