Tag: Space

Emerging Victorious: The LISA Pathfinder
Astronomy and planetary sciences, Space engineering, Space flight

Emerging Victorious: The LISA Pathfinder

The LISA (Laser Interferometer Space Antenna) Pathfinder is a research spacecraft of the European Space Agency (ESA) and was launched in December 2015. The main purpose of the LISA Pathfinder mission is to test certain technologies for future space observatories to detect gravitational waves from large astronomical bodies (e.g. stars) around us. The LISA Pathfinder uses extremely sophisticated technology to observe the "path" taken by two cubes located in the heart of the spacecraft when subjected to pure gravitational free-fall. It is also ensured that the cubes act under the influence of gravity alone and hence, the LISA Pathfinder shields these two cubes from external disturbances like solar wind and/or pressure. Therefore, you have two cubes in pure gravitational free-fall insid...
Astronomy and planetary sciences, Space flight

How Are Supermassive Black Holes Born?

It is believed that black holes are formed from ‘black hole seeds’ that grow out of smaller black holes. These seeds then grow by consuming the gas from their surroundings and merging with other small black holes. This process, however, is slow and fails to satisfactorily account for the rapid development of black holes.   Now, an Italian group of scientists has identified two objects in the early universe which could be suitable candidates to be black hole seeds. Seen less than a billion years after the Big Bang, these ‘seeds’ weigh 100,000 times the mass of our Sun. These seeds are formed directly when a massive cloud of gas collapses onto itself, according to new findings. The Italian team’s new research points towards a theory that black holes start big and proceed to...
News, Space engineering, Space flight

NASA’s Space Balloon is Ready For Deployment

  In a 4-hour process that will broadcast live from the ISS on the morning on May 26th, NASA’s astronauts will begin to deploy the ‘BEAM’. Bigelow Expandable Activity Module, or BEAM, is essentially an inflatable room. It is designed such that it takes up less room to be transported and can then expand to 5 times its original size when inflated. Roughly the size of a small bedroom, this module will be accessible from the ISS’s Tranquility module. Inflatable rooms are thought to play a key role in future space missions to Mars & beyond. The ISS astronauts are first scheduled to enter the module on the 2nd of June 2016. However, they will not stay inside for extended periods of time as BEAM’s viability has to be analyzed first. BEAM is planned to stay deployed at the IS...
Mercury’s transit
Astronomy and planetary sciences, News, Space flight

Mercury’s transit

A celestial event that will occur merely 14 times throughout the entire 21st century; it is now time for Mercury’s transit in front of our Sun. From the Earth’s perspective, only the transits of Mercury & Venus can be viewed. On May 9th 2016, Mercury could be seen as a minuscule black dot sailing in front of the Sun’s magnificent inferno. Centuries ago, it was the observation and analysis of the transit of Mercury (and Venus) that led astronomers to estimate astronomical distances. This was done by making use of the parallax effect. Astronomers would observe the transits from different geographical locations on Earth and precisely record the start and end of the transit. Thereby, the first estimates of the distance from the Earth to the Sun (1 AU) and other celestial bodies were...
ATV-5: The Last of its Kind
News, Space engineering, Space flight

ATV-5: The Last of its Kind

A trail of fire in the night sky marked the end of ESA’s ATV program. On February 15, 2015 the last ATV, ATV-5 undocked from the International Space Station and started deorbiting. Loaded with waste from the ISS it made its way back towards the atmosphere, where it burned out over the Pacific Ocean. This was the last ATV made by ESA. It marks the end of a space program, which was already conceived in 1987 to serve for an international Space Station, when UssR’s MIR station was shut down. Five successful ATV missions (originally Ariane Transfer Vehicle) have made its way to space since the first launch in 2008. Its legacy however remains as the experience and technology will be used for further space missions such as NASA’s Orion capsules.