When an object is falling, the two main forces acting on it are weight close weightA force that acts on mass, pulling it down, due to gravity. Weight is a force and forces are measured in newtons (N).

New observations from the Nordic Optical Telescope, in the Canary Islands, Spain, suggest that 3I/ATLAS's unusual anti-solar tail has changed direction, becoming dominated by a tail that faces away ...

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HMSG copy 39088019840859 gift of Andrea Rosen Gallery. https://siris-libraries.si.edu/ipac20/ipac.jsp?&profile=liball&source=~!silibraries&uri=full=3100001~!1099794 ...