A recent study indicates that Earth’s composition closely matches Mars, challenging long-held assumptions about where our ...

Planetary scientists led by Paolo Sossi have determined that Earth assembled almost entirely from material originating in the inner solar system, with outer solar system contributions limited to just ...

Astro Brief is a podcast collaboration between KSMU, the Missouri Space Grant, and MSU's Department of Physics, Astronomy and ...

"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 ...

An international team of astronomers has discovered a distant planetary system that challenges long-standing theories of how planets form. Across our galaxy, astronomers routinely observe a ...

It’s not every day you get a chance to spot multiple planets with the naked eye—but this month, you can. Venus and Mercury are both visible in the sky, offering a rare glimpse ...