Misconception of high concentration of space debris in near Earth orbit

Satellites are the mainstay by which we communicate digitally to friends in different parts of the world. However, with more frequent rocket launches for propelling satellites into orbit as well as the decommissioning of old satellites, there is attendant increase in space debris orbiting the low earth orbit region where many weather satellites orbit, as … More Misconception of high concentration of space debris in near Earth orbit

Scientific value of redirecting an asteroid to lunar orbit

Ideas for capturing an asteroid and towing it with a spacecraft for parking it within lunar orbit was floated several years ago and received initial seed funding from the National Aeronautics and Space Administration (NASA) of the United States. Technical challenging and hugely expensive, the mission is conceived as a stepping stone for enabling humans … More Scientific value of redirecting an asteroid to lunar orbit

Not possible to do exploratory research on exoplanets with amateur Earth based telescopes

Detecting exoplanets in faraway solar systems is one of the hot topics in planetary science and exoplanets research, and is usually achieved with expensive space based and Earth-based telescopes. Specifically, a variety of methods such as transit and radial velocity detection have been successfully used in detecting small perturbations in the parent star luminosity and … More Not possible to do exploratory research on exoplanets with amateur Earth based telescopes

Low probability of expulsion of planets from a Solar System due to gravitational tug

Exoplanets is one of the most exciting research fields in planetary science and astrophysics. Seeded in 1995 with the discovery of the first planets outside the Solar System, the field of exoplanets research have expanded rapidly with the use of more sensitive instruments capable of detecting the small drop in luminosity of the parent star, … More Low probability of expulsion of planets from a Solar System due to gravitational tug

Debunking a myth about the high density of asteroids in the main asteroid belt between Mars and Jupiter

Between Mars and Jupiter lies an asteroid belt comprising a large number of rocky planet infinitesimal early in the failed gestation process to becoming a planet. Being small in size and roughly spherical in shape, their orbit around the sun are constrained by the gravitational tug of the gas giant Jupiter as well as that … More Debunking a myth about the high density of asteroids in the main asteroid belt between Mars and Jupiter

Probing a geological question on Mars: What is the correct price for a robotic scientific mission to another planet?

NASA’s upcoming Insight’s mission is a lander designed to probe the seismic environment of Mars. Equipped with a seismometer, the mission’s main scientific objectives is to understand the geological activity of present day Mars, a goal that is on the one side, controversial, but on the other, useful and with an expensive price tag.   … More Probing a geological question on Mars: What is the correct price for a robotic scientific mission to another planet?