Tumbleweeds originated in Russia and Siberia and they were brought to the United States in the 1870s, hidden among imported flax seeds. It only took 20 years for the plants to spread throughout the western United States and parts of Canada.
New English Canaan, written by Thomas Morton, was the first book to be banned in the US. It was banned in 1637 for its harsh criticisms of the restrictive Puritan customs of the New English colony at the time.
A study shows up to 30% of Sun-like stars may engulf planets, altering their metallicity. These "polluted" stars suggest rocky planets are destroyed during orbital decay. Ultra-short-period planets in compact systems are key to understanding this pheno
