Photos: Atlas 5 rocket aims for International Space Station

A $110 million NASA science instrument twice targeted for cancellation by the Trump administration is set for launch Tuesday inside the trunk of a SpaceX Dragon cargo capsule for delivery to the International Space Station, where it will spend three years charting changing carbon dioxide concentrations in Earth’s atmosphere.

A commercial Cygnus cargo freighter arrived at the International Space Station Tuesday two-and-a-half days after launching from Virginia’s Eastern Shore, delivering a new British-made high-speed communications antenna and more than 7,000 pounds of other experiments and equipment.

India’s GSLV Mk.3 rocket took off Monday on its first full-scale orbital test flight, delivering the GSAT 19 communications satellite to an on-target orbit after successfully demonstrating new solid rocket boosters, a twin-engine core stage and an upgraded cryogenic upper stage engine.