We use telescopes or satellites
As astronaut travels into outer space and some have been killed doing so. Most astronomers stay on the planet Earth and look up into space. There have been astronauts who are astronomers, but, most astronomers are not astronauts. There have been tens of millions of astronomers looking up at outer space, but, only a few hundred astronauts. No, they are not the same.
Pencils are often used in space because most pens rely on gravity to work and are therefore useless in orbit.
Lee would find most of her information by studying scientific research papers, observing data collected from space missions, and consulting with astronomers and planetary scientists. Additionally, she could reference reliable sources such as NASA, the European Space Agency, and academic institutions specializing in astronomy and planetary science.
The Hubble space telescope.
Space debris is anything man-made that has been launched into space, but no longer has any function. Most debris is from parts of satellites/stations that have been ejected or that have fallen away.
It usually stays in orbit around the earth, and poses a serious threat to all orbiting satellites. Even a small object can destroy things at high speed. Most satellites can move around projected paths of junk thrown in space. Some astronomers use radio telescopes to track "Space Junk".
The telescope helps astronomers the most when studying the sky.
Some astronomers are likely to be good at DIY, but most would probably get a contractor in.
Most optical telescopes used by professional astronomers are located on mountains or remote locations away from city lights to minimize light pollution and atmospheric disturbances. Some observatories, such as those in Chile and Hawaii, are known for having excellent observing conditions due to high altitudes and clear skies. Telescopes are also placed in space, like the Hubble Space Telescope, to avoid atmospheric interference.
Astronomers find the electromagnetic spectrum most useful during their observations and research. This spectrum includes various types of radiation such as visible light, radio waves, X-rays, and gamma rays, which provide valuable information about the properties and behavior of celestial objects. By studying different wavelengths of light, astronomers can gain insights into the composition, temperature, and movement of objects in the universe.
Not without their spaceship.
New information about space is published all the time. I recommend spaceweather.com as perhaps the most timely and interesting info about how space affects us here, but space.com has more detailed astronomical discoveries.