Questions about the universe, answered.

Engineers and scientists prepare command sequences on Earth (at Space Telescope Science Institute). These commands are uploaded in batches via NASA’s Deep Space Network. The telescope exec...

Asked by 1t1gj

Estimates for space debris around Earth (orbital debris) are roughly: ~36,000+ objects larger than 10 cm (trackable from Earth) ~1 million objects between 1–10 cm ~100+ million fragment...

Asked by 4xlvy

Short answer: usually no-a black hole doesn’t automatically heat nearby planets. Why: A black hole itself (like black hole) doesn’t emit light or heat in the usual sense; it mainly exe...

Asked by Isabelle

One of the strangest discoveries is Fast Radio Bursts (FRBs)-extremely powerful, millisecond-long radio signals from deep space with an unknown origin. Other unusual finds include the inters...

Asked by Bryan Moral L

Yes, if our universe were inside a black hole, it could be vast from the inside due to space-time expansion, even if it appears small from the outside.

Asked by kkbp8g

There's no direct evidence yet, but it's possible the Sombrero Galaxy could have habitable planets, like many galaxies with stars and planetary systems.

Asked by kkbp8g

The Moon is not expected to lose orbit. Instead, it's slowly moving away from Earth—about 3.8 cm per year—but it will stay in orbit for billions of years.

Asked by Sparkleberry369

There are 5 active man-made spacecraft currently in orbit around or traveling through the solar system beyond Earth: Voyager 1 Voyager 2 Pioneer 10 (no longer communicating) Pioneer 11...

Asked by Sparkleberry369

Yes, JWST's MIRI can detect carbon-fluorine stretching vibrations in the mid-infrared range (7–10 µm), where these signals occur.

Asked by Alessandro

No, it's not always daytime in space. Within a solar system, sunlight creates bright areas, but shadows and darkness exist. Outside a solar system, space is mostly dark, lit only by distant...

Asked by exobiologist

As of now, Betelgeuse has not yet reached the supernova stage. Despite some dramatic changes observed in recent years, including a significant dimming event in late 2019 and early 2020, and...

Asked by Catie

The universe looks homogeneous on large scales because of the smoothing effects of cosmic inflation and the statistical averaging of large-scale structures. Despite the finite speed of light...

Asked by [email protected]

Scientists have not confirmed the discovery of microorganism forms of life on other planets. The search for extraterrestrial life encompasses various methods, including the analysis of the M...

Asked by Marwow

Yes, there are several books that aim to explain quantum mechanics to laypeople, without requiring a deep background in physics or mathematics. Here are a few notable ones: "Quantum Physi...

Asked by Muffinsdaddy

Certainly, here are some of the strangest objects discovered in space: 1. **Black Holes**: Regions of space with gravity so strong that nothing can escape. 2. **Neutron Stars**: Extremel...

Asked by DARKLIGHT

The James Webb Space Telescope (JWST) is positioned at the second Lagrange point (L2), which is about 1.5 million kilometers (0.93 million miles) away from Earth. At this location, the teles...

Asked by Wuen

Radio waves and infrared radiation are part of the electromagnetic spectrum, which encompasses a wide range of wavelengths and frequencies. Radio waves have longer wavelengths and lower freq...

Asked by Frogguy

Pluto was considered the ninth and farthest known planet from the Sun in our solar system. However, in 2006, the International Astronomical Union (IAU) reclassified Pluto as a \"dwarf planet...

Asked by Faktea

Planetary systems primarily orbit stars because of the fundamental gravitational interaction between celestial bodies. This interaction is governed by Isaac Newton's law of universal gravita...

Asked by Piv

We can see back in time through wavelengths by studying light from distant objects in space. Light travels at a constant speed, so the light we observe from far-off celestial bodies took a l...

Asked by Jray

The closest known black hole to Earth is the one located in the binary star system called V616 Monocerotis, also known as A0620-00. This black hole is approximately 3,000 light-years away fr...

Asked by Marwow

Today, there are more than 5,000 known exoplanets, ranging from gas giants to small rocky worlds. And perhaps most excitingly, astronomers have now found about a dozen exoplanets that are li...

Asked by Marwow

Virtual particles are a part of quantum field theory, a theoretical framework that describes the quantum behavior of particles. They are not \"particles\" in the traditional sense, but rathe...

Asked by Bigboy

Astronomers use different coordinate systems depending on the scale and context:\n\nEquatorial Coordinate System: For local objects like planets or stars. It uses right ascension (similar to...

Asked by Tin

Yes, light beams, including those observed by the James Webb Space Telescope (JWST), can be considered macroscopic quantum phenomena because they are made up of photons, which are quantum me...

Asked by Bigboy

The James Webb Space Telescope (JWST) can find other galaxies by using its infrared sensors to detect the light that these distant galaxies emit. This light has been stretched out (or \"reds...

Asked by Yikai

The \"quantum realm\" is not really a \"space\" in the sense of a physical region or volume, like we usually understand the term. It refers to the scale at which quantum mechanical effects b...

Asked by Bigboy