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Earth orbits the Sun at an average distance of 149.60 million km (8.317 light minutes, 92.96 million mi) in a counterclockwise direction as viewed from...

The Indian Human Spaceflight Programme (or Gaganyaan) is an ongoing programme by the Indian Space Research Organisation (ISRO) to develop the technology...

The Indian Ballistic Missile Defence Programme is an initiative to develop and deploy a multi-layered ballistic missile defence system to protect India...

The Moderate Resolution Imaging Spectroradiometer (MODIS) is a satellite-based sensor used for earth and climate measurements. There are two MODIS sensors...

In observational astronomy, culmination is the passage of a celestial object (such as the Sun, the Moon, a planet, a star, constellation or a deep-sky...

Kepler Communications Inc. is an international satellite telecommunications company based in Toronto, Ontario, Canada, with presence in the UK and the...

Sylvia (minor planet designation: 87 Sylvia) is one of the largest asteroids (approximately tied for 7th place, to within measurement uncertainties). It...

The International Space Station Environmental Control and Life Support System (ECLSS) is a life support system that provides or controls atmospheric pressure...

NGC 1850 is a double cluster and a super star cluster in the Dorado constellation, located in the northwest part of the bar of the Large Magellanic Cloud...

Gamma Cassiopeiae, Latinized from γ Cassiopeiae, is a bright star at the center of the distinctive "W" asterism in the northern circumpolar constellation...

Atmakaraka (from Sanskrit atma- 'soul', and karaka- 'significator') is the significator of the soul's desire in Jyotisha (Hindu astrology). The Atmakaraka...

The gridded ion thruster is a common design for ion thrusters, a highly efficient low-thrust spacecraft propulsion method running on electrical power by...

Hebe /ˈhiːbiː/ (minor planet designation: 6 Hebe) is a large main-belt asteroid, containing around 0.5% of the mass of the belt. However, due to its apparently...

The CMB Cold Spot or WMAP Cold Spot is a region of the sky seen in microwaves that has been found to be unusually large and cold relative to the expected...

Sh 2-1, also known as Sharpless 1, is a reflection nebula in the constellation of Scorpius with Pi Scorpii at its center. It appears as a modest brightness...

The beacon mode service is a Consultative Committee for Space Data Systems (CCSDS) telecommunications service aimed at spacecraft which are not communicated...

The UBV Photoelectric Photometry Catalogue, or UBV M, is the star brightness catalogue that complies to the UBV photometric system developed by astronomer...

William Weber Coblentz (November 20, 1873 – September 15, 1962) was an American physicist notable for his contributions to infrared radiometry and spectroscopy...

864 Aase is an S-type asteroid[1] belonging to the Flora family in the Main Belt. The object A917 CB discovered 13 February 1917, by Max Wolf was named...

Solar conjunction generally occurs when a planet or other Solar System object is on the opposite side of the Sun from the Earth. From an Earth reference...