Tag: science & technology

The Malaysian Ringgit (abbreviated as RM or MYR) is the official currency of Malaysia. It is divided into 100 sen and has been Malaysia's currency since 1967, replacing the Malaya and British Borneo dollar. The Ringgit is managed by Bank Negara Malaysia and the name means 'jagged' in Malay, referring to the serrated edges of earlier Spanish silver coins that circulated in the region.

Lenovo, a Chinese multinational technology company, acquired IBM's personal computer division in 2005 for approximately $1.75 billion. This landmark deal made Lenovo the world's third-largest PC manufacturer at the time and gave it ownership of the iconic ThinkPad brand. This acquisition was part of IBM's strategic shift away from hardware toward software and services.

Titan is famous for having an exceptionally dense atmosphere for a moon - about 1.5 times denser than Earth's at surface level. However, the question phrasing is poor and Jupiter (a gas giant) has a far more massive atmosphere overall by any physical measure. The question likely tests knowledge of Titan's unique thick atmosphere, which is nitrogen-rich and hazelike similar to early Earth.

Gliese 581g was announced in 2010 as a potentially habitable exoplanet in the Gliese 581 system's habitable zone - the region where liquid water could exist on a planet's surface. Note: Later studies questioned its existence, but this question tests the original NASA claim about habitable zone location.

VY Canis Majoris is one of the largest known stars - a red hypergiant with radius around 1,420 times that of our Sun. The Pistol Star is a blue hypergiant but smaller than VY Canis Majoris. Our Sun is a yellow dwarf, and 'Pulsur' appears to be a typo for 'pulsar' (which are neutron star remnants, not size competitors).

The habitable zone (also called 'Goldilocks zone') is the orbital distance range from a star where conditions could allow liquid water on a planet's surface - not too hot (water vaporizes), not too cold (water freezes). This depends on stellar luminosity and planet atmosphere.

Voyager 1 became the first human-made object to cross the heliopause and enter interstellar space in 2012. Cassini orbited Saturn; Hubble is an Earth-orbiting telescope; Pioneer 10 was an earlier outer solar system probe. Voyager 1 is currently the farthest spacecraft from Earth.

Our Sun is classified as a G-type main-sequence star, commonly called a yellow dwarf star. It's in the prime hydrogen-burning phase of its life. Neutron stars are stellar remnants; supergiants are massive evolved stars; red dwarfs are smaller M-type main-sequence stars (the most common type).

The James Webb Space Telescope (JWST) launched in 2021 as Hubble's successor, designed primarily for infrared astronomy to peer deeper into space and time. It's not a direct replacement but a complementary observatory. Hubble continues operating in visible/UV; Spitzer was an infrared telescope decommissioned in 2020.