Reentry (test program)

Reentry was a series of suborbital tests carried out by NASA in the 1960s to evaluate various types of heat ablative materials (see ablation) and atmospheric reentry technology, particularly in preparation for the Apollo program. The nose cones of the Scout rockets used in these tests were coated in heat-shield ablators and then caused to reenter the atmosphere at around 28,000 kilometeres per hour – the speed of reentry after a lunar excursion.