Blue Origin is once again counting down to the first launch of its orbital-class New Glenn rocket, buoyed by a better weather forecast.

Blue Origin pushed again its planned debut launch of its New Glenn rocket from the Space Coast, now targeting an early Monday morning liftoff. The 321-foot-tall rocket making its debut on the NG-1 mission is targeting a three-hour window from 1-4 a.

Reports revealed that New Glenn's two engines, optimized to function in the vacuum of space, should fire up and propel the vehicle to speeds necessary to enter orbit — typically around 17,500 miles per hour, or nearly 23 times the speed of sound. A lost chapter in our planet's history.