NASA’s Goddard Space Flight Center in Greenbelt, Maryland is using an inflatable antenna in conjunction with a new instrument called the Terahertz Spectrometer for In-Situ Resource Utilization. The instrument is a miniature, high-power laser that can detect water. 

The inflatable antenna was part of NASA’s Inflatable Antenna Experiment, which may have led to a successful commercial product. 

The antenna is a large balloon reflecto

The concept turns part of the inside surface of an inflated sphere into a parabolic antenna. A section comprising about a third of the balloon’s interior surface is aluminized, giving it reflective properties

The Large Balloon Reflector (LBR) is a 10-meter sub-orbital balloon-borne telescope. It can operate from radio to THz frequencies. The LBR consists of an inflatable, half-aluminized spherical reflector inside a much larger carrier stratospheric balloon. 

The LBR can be used as a telescope. It can also be used for remote sensing or telecommunication activities. 

The LBR was conceived of by David E. H. Jones, under the pen name Daedalus

Some 30 years ago, a young engineer named Christopher Walker was home in the evening making chocolate pudding when he got what turned out to be a very serendipitous call from his mother.

Taking the call, he shut off the stove and stretched plastic wrap over the pot to keep the pudding fresh. By the time he returned, the cooling air in the pot had drawn the wrap into a concave shape, and in that warped plastic, he saw something – the magnified reflection of an overhead lightbulb – that gave him an idea that could revolutionize space-based sensing and communications.

The Goddard Space Flight Center (GSFC) is a major NASA space research laboratory located approximately 6.5 miles (10.5 km) northeast of Washington, D.C. in Greenbelt, Maryland, United States. Established on May 1, 1959 as NASA’s first space flight center, GSFC employs approximately 10,000 civil servants and contractors. Named in recognition of American rocket propulsion pioneer Robert H. Goddard, it is one of ten major NASA field centers

Terahertz (THz) spectroscopy is a method of detecting and controlling properties of matter using electromagnetic fields. THz spectroscopy uses radiation frequencies between 0.1 and 10 THz, which is part of the far-infrared region of the electromagnetic spectrum. THz spectroscopy can characterize molecular vibrational modes. 

Terahertz spectroscopy has applications in: 

• Developing and producing drugs 
• Medical imaging 
• Security 
• Scientific imaging (chemistry, biochemistry, astronomy) 
• Communications 
• Manufacturing 
• Detecting DNA mutations

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