Trees With No Branches

Trees do an important job, cleaning the air. But how do you plant trees in the city? London is fighting pollution by placing towers of moss on sidewalks. The carbon-filtering structures are called City Trees, because each one can clean as much air as 275 trees! They even store moisture, helping to cool the air.

Found Any New Planets Lately?

17-year-old Wolf Cukier spent the past summer, working as an intern at NASA. On his 3rd day, he discovered a planet orbiting 2 stars! He was working with the Transiting Exoplanet Survey Satellite, also known as TESS. The Planet Hunters TESS Explore Project, on, lets anyone search the data, to help identify new planets.

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