Over a month after its perihelion, or closest pass of the Sun, observations still clearly show 3I/ATLAS' "anti-tail." ...

As the interstellar comet 3I/ATLAS races toward its closest pass by our planet, astronomers are fixated on a peculiar feature ...

Is it natural? Astronomers spot strange protrusion on object 3I/ATLAS as it speeds toward Earth. The interstellar comet shows ...

The cyclical protrusion and retraction of the leading edge is a hallmark of many migrating cells involved in processes such as development, inflammation and tumorigenesis. The molecular identity of ...

Protrusion of plaque into the stent lumen during carotid artery stenting (CAS), though an infrequent complication, illustrates the need for careful periprocedural management and follow-up as well as ...

Dear Dr. Roach: I am an 80-year-old woman in good health with low blood pressure, and the only medication I take is levothyroxine. A 6-by-5.5-mm aneurysm was discovered in my brain, and the scan shows ...

I have talked about liner protrusion many times since I started writing. But most owner-operators who get their engines built by other shops never ask where the mechanic set the liner protrusion.