Astronomers might soon get their first peek into the dark universe. On Saturday, July 1, the European Space Agency’s (ESA) Euclid spacecraft will launch on a SpaceX rocket from Florida on a mission to peer into deep space and unveil the elusive dark universe — and NASA’s James Webb Space Telescope will be an important partner in this cosmic quest.  After a month-long flight, Euclid will reach a vantage point about 1 million miles (1.5 million kilometers) from Earth, where it will share its cosmic accommodation with the James Webb Space Telescope (JWST), whose powerful infrared eye probes the universe…