November 7th, 2024

Probing unknown unknowns: A new generation of telescopes

Recent advancements in telescope technology, including the ELT and Vera C. Rubin, aim to enhance cosmological research, despite gaps in ultraviolet and visible light astronomy due to political and financial issues.

Read original articleLink Icon
Probing unknown unknowns: A new generation of telescopes

Recent advancements in telescope technology are set to significantly enhance our understanding of the universe over the next two decades. The Extremely Large Telescope (ELT) and the Vera C. Rubin telescope, both under construction in Chile, exemplify this progress. The ELT will feature a mirror equivalent to four tennis courts, while Rubin's camera, the largest ever built, will capture the entire sky every three days, creating a time-lapse of the universe over ten years. Despite these advancements, there are notable gaps in upcoming space telescopes, particularly in ultraviolet and visible light astronomy, due to political and financial constraints. The Hubble and James Webb Space Telescopes have revolutionized cosmology, uncovering unexpected phenomena that were not part of their original objectives. Future telescopes, including the Euclid and Nancy Grace Roman telescopes, aim to address inconsistencies in the universe's expansion rates and matter distribution. However, the reliance on infrared observations raises concerns about diversity in observational capabilities. Innovative approaches, such as deploying telescopes on the Moon or using gravitational wave detectors, may yield further discoveries. Ultimately, the next generation of telescopes is expected to explore unknown unknowns, pushing the boundaries of our cosmic understanding.

- New telescopes like the ELT and Vera C. Rubin are set to enhance cosmological research.

- Gaps exist in ultraviolet and visible light astronomy due to political and financial issues.

- Hubble and Webb have made unexpected discoveries beyond their initial goals.

- Future telescopes aim to resolve inconsistencies in the universe's expansion.

- Innovative technologies may lead to new discoveries in astronomy.

Link Icon 4 comments
By @gourneau - 3 months
Here's hoping LLMs stick to the naming trend used for telescopes like the ELT:

• Large Telescopes → Large Language Models (LLM): Solid start, foundational capabilities.

• Large Telescope (VLT) → Very Large Language Models (VLLM): Major upgrade in size and skills.

• Giant Telescopes → Giant Language Models (GLM): Multimodal, smarter and more specialized.

• Extremely Large Telescope (ELT) → Extremely Large Language Models (ELLM): Expert-level, cross-domain.

• Overwhelmingly Large Telescope (OWL) → Overwhelmingly Large Language Model (OWLLM): Theoretical AGI, huge power, ethical dilemmas.

By @farseer - 3 months
U.S. Secretary of Defense Donald Rumsfeld made the famous statement:

"There are known knowns. There are things we know that we know. There are known unknowns. That is to say, there are things that we know we don’t know. But there are also unknown unknowns. There are things we don’t know we don’t know."

By @metalman - 3 months
when it comes to anything to do with the universe,what could very generously be called the "knowns" ,is still such an improbably tiny part of what we suspect might be out there as to disappear without effect the only realy interesting fact, is that we are not detered by the missmatch at all rock on telescope dudes
By @eh_why_not - 3 months
> ... will house a mirror the size of four tennis courts...

What's with those "football stadium", "tennis court", etc measurement units?

Is it assumed that everyone knows how much that is? Are they more understandable than giving a number (area) or two (length x width) in SI - or even Imperial - units?

Instead you have to go search for what the size in that particular sport is, so you can get any idea of what they're talking about!