Telescopic images taken in the infrared and x-ray parts of the spectrum have been a great help in this area, to name just two. As an example: The center of our Milky Way galaxy lies in the direction of the constellation Sagittarius, but we cannot see it in normal light because of gasses and dust between our part of the galaxy and the center. But with infrared Photography, the center of the galaxy is seen easily as an egg yolk-shaped "glow".
Astronomers may face challenges such as light pollution from surrounding urban areas, atmospheric turbulence which can distort images, and limited observation time due to weather conditions and the Earth's rotation. Additionally, technical issues with the telescope or instrumentation can also hinder observations.
building cars that run on non-polluting fuels. -APEX
Europe's rivers flow through many different countriesEurope's rivers flow through many different countriesEurope must import water from other continents
Europe's rivers flow through many different countriesEurope's rivers flow through many different countriesEurope must import water from other continents
To learn what they are made of.
Europe's rivers flow through many different countriesEurope's rivers flow through many different countriesEurope must import water from other continents
In theory a nuke power plant produces no pollution. It is 100% clean energy. Though pollution from the waste is a big problem and is sometimes dumped in the environment causing pollution such as radiation and poisonous chemicals.
One major problem caused by using fossil fuels is air pollution, which leads to poor air quality, respiratory illnesses, and contributes to climate change through the release of greenhouse gases such as carbon dioxide.
Through the Spitzer Telescope
well it goes through the air and travels through to create carbon based pollution
Rocket launching causes pollution through the release of carbon dioxide, black carbon, and other greenhouse gases into the atmosphere. These pollutants can contribute to global warming and climate change. If a significant number of rockets are launched globally, the cumulative effect of this pollution can become an international problem by impacting air quality, exacerbating climate change, and potentially leading to diplomatic tensions due to the shared responsibility for addressing the environmental impact.
Astronomers cannot directly detect black holes because they do not emit light or any electromagnetic radiation. Instead, black holes are identified through their gravitational effects on nearby objects, such as stars and gas clouds, which exhibit unusual motion or emit X-rays when matter is accreted. Additionally, the event horizon of a black hole marks a boundary beyond which no information can escape, making direct observation impossible. Thus, astronomers rely on indirect evidence and the study of surrounding phenomena to infer the presence of black holes.