One way to track the solar cycle is by counting the number of sunspots, which are dark, cooler patches on the Sun’s surface.

The comet, discovered in July 2025, originated far beyond our Solar System and is thought to be around 7 billion years old - ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London.View full profile Alfredo has a PhD in Astrophysics and a Master's in Quantum ...

In late April 2026, a long-period comet will swing through the inner solar system. It will likely be visible with binoculars, ...

This animation shows the observations of comet 3I/ATLAS when it was discovered on July 1, 2025. The NASA-funded ATLAS survey telescope in Chile first reported that the comet originated from ...

"Jupiter didn't just become the biggest planet — it set the architecture for the whole inner solar system." When you purchase through links on our site, we may earn an affiliate commission. Here’s how ...

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NASA on Wednesday released new images of an interstellar comet, just the third visitor ever confirmed from elsewhere in the galaxy, which show the object as a bright point of light surrounded by a ...

Astronomers at Princeton University have uncovered evidence that the outer solar system is more structured than long believed ...

Earth and the planetary object that gave rise to the Moon were likely born in the same region of the solar system. Reading time 3 minutes Around 100 million years after the formation of the solar ...

NASA just dropped a trove of new images of interstellar Comet 3I/ATLAS, as seen by some of the space agency’s spacecraft. The release comes after NASA scientists and engineers waited through the ...