SOLAR SYSTEM

Detailed explanation-1: -Weighing nearly 6, 910 kg at launch, TerreStar-1 is the largest commercial communications satellite ever launched. It will be positioned at 111 degrees West, offering new-generation mobile communications services across the entire United States and Canada.

Detailed explanation-2: -The TerreStar satellite, together with an Ancillary Terrestrial Component (ATC), is designed to provide next-generation, 2 GHz mobile voice and data communications, monitoring and messaging services throughout the United States.

Detailed explanation-3: -GSAT-11 Mission. India’s next generation high throughput communication satellite, GSAT-11 was successfully launched on December 05, 2018 from Kourou launch base, French Guiana by Ariane-5 VA-246. Weighing about 5854 kg, GSAT-11 is the heaviest satellite built by ISRO.

Detailed explanation-4: -At least two vintage duplicates of Sputnik 1 exist, built apparently as backup units. One resides just outside Moscow in the corporate museum of Energia, the modern descendant of Korolev’s design bureau, where it is on display by appointment only.

Detailed explanation-5: -On Oct. 4, 1957, Sputnik 1 successfully launched and entered Earth’s orbit. Thus, began the space age. The successful launch shocked the world, giving the former Soviet Union the distinction of putting the first human-made object into space.