Can NASA’s Nancy Grace Roman Telescope Find 100,000 Planets?

Launched in the mid-2020s, the Nancy Grace Roman Telescope is one of the best planet-hunting telescopes. Although the main glass in the center of the Roman telescope is not larger than that of the Hubble Space Telescope, Roman glass is only 25 percent larger than its predecessors. With a broader vision than Hubble, this next-generation telescope, formerly known as WFIRST, can detect 100,000 worlds orbiting other stars.

The Roman telescope studies the sky at infrared wavelengths. The first of these techniques, the mode of transport, refers to the amount of light seen from a star as it passes “ahead” of its stellar parent as seen from Earth. The second method, gravity microlensing, indicates a slight increase in light due to the presence of an exoplanet.

Keep talking, you will see it

In this video provided by NASA, click the Play button above to see how the Exoplanets look like using the transport system.

Most exoplanets Discovered using the transportation method discovered so far. The regular, occasional fading of a star is the easiest way to locate planets, but this only works for systems where an exoplanet passes between the star and Earth.

Astronomers currently know about 4,400 planets orbiting other stars. Of these, about 2,800 were discovered by the Kepler spacecraft using the transport system (which completed its mission in 2018).

The same technique is currently used Replacing the Exoplanet Survey Satellite (TES).

In this video from NASA, press the Play button above to see how gravity microlensing reveals the presence of distant exoplanets.

Gravitational microlensing, the illumination of light from a star, results from the bending of light from a star due to the gravitational forces of a spacecraft, which bends light as it passes through a concentric lens in a telescope. This event was first predicted Albert Einstein In his theory of general relativity.

“Microlensing events are rare and occur quickly, so you have to measure a lot of stars over and over again to find them. According to Benjamin Montet, an astronomer at the University of New South Wales in Sydney, this is what you need to do to find transiting planets, so Roman will also create a good traffic survey by creating a robust microlensing survey.

Credit: NASA