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.

India will launch its new Earth observation satellite, Cartosat-2C, in May, in an effort to boost the country’s military reconnaissance and surveillance capability.

Evaluations to demonstrate spacecraft's capability to complete 1,000-day mission as NASA's deep space strategy is questioned.

Amazon founder Jeff Bezos sees the cost of orbiting payloads as the missing link blocking an Internet-like boom in commercial space.

A new Orbital ATK venture set up to develop commercial on-orbit satellite-servicing capabilities has signed Intelsat as its first paying customer, with launch of the initial Mission Extension Vehicle (MEV-1) to an out-of-service Intelsat bird as early as 2018.

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.

Lockheed Martin is leveraging power, environmental control, galley and waste compartment systems already under development for its Orion crew exploration capsule for an in-space habitat the company is developing under one of a dozen NASA commercial partnership agreements.

Oklahoma Republican Rep. Jim Bridenstine hopes to build consensus around space policy issues that could feed into a number of other bills – defense authorization, NASA reauthorization or FAA reauthorization — before the year is out.