The International Space Apps Challenge is your opportunity to build, create, and invent new solutions to challenges of global importance.
What more, you will be given access to tons of Nasa APIs where you can write, develop and code to exploit these APIs. Challenges are categorized per Software, Hardware, Data Visualisations, and Citizen Science. Grab one, participate and be a part of the challenge.
Go here and register yourself to your nearest location – for India, its Bangalore.
I did register myself and joined Preliminary Design for Open Data API and Ham, Beacon & Hacks projects.