Aviation Week has been there at every opportunity to explore space, the final frontier. Here is a collection of anniversary dates from the Aprils of many a year gone by where discoveries and technologies have been charted.

Rep. Jim Bridenstine (R-Okla.) is proposing legislation to tackle a broad range of space issues, foremost is ending the use of the Defense Department to manage space traffic.

Boeing, Lockheed Martin and Northrop Grumman vie for the next-generation satellite work.

Deploying “ChipSats” could significantly alter the face of missions to seek signs of life on Jovian moon Europa—and other planetary research.

Covering planetary exploration in detail has been a special draw for Aviation Week reporters and readers for decades. Missions to Mars have always had a special allure. Check out some of the highlights from the 1960s to today as we celebrate our 100th anniversary.

Nine months after the European Space Agency (ESA) approved development of the new Ariane 6 and Vega-C rockets, development of the next-generation vehicles at prime contractor Airbus Safran Launchers (ASL) is starting to take shape.

The preliminary design review of a U.S.-European ocean-monitoring mission has been delayed by several months as part of a risk-reduction effort following the failure of a radar instrument aboard another climate-science mission.

The New Horizons spacecraft was hailed in 2006 as the fastest vehicle ever to depart the Earth. Its mission: to learn more about the complex world of Pluto, its mountains and Moons and flowing ices.