I am always surprised to see moss exposed in wintertime. Hiking on trails or backcountry roads, I encounter moss-covered rocks, or mossy ledges that crop out on the slope, like a bed where the quilt has been pulled back part way and you can see the sheets peeking out underneath.
The speech represents a chance for Biden to address the nation on where he thinks the country stands, where it is headed and what his priorities are ahead. Here, several issue areas to look out for.
Astronomers are debating how quickly the observations of the Hubble Space Telescope and the James Webb Space Telescope should be made public.