The tiny nucleus of the comet (not visible) is surrounded by a bright halo of gas known as the coma. A long tail stretches away from the comet, and we see hints of rays, jets, streams and filaments.

Moderna will pay US$950-million upfront in July, 2026, with an additional US$1.3-billion contingent on the outcome of a separate legal appeal, while not owing royalties for the technology in its ...