ClaudSkills / Science & Research / physics

Relativity Astrophysics

Q: What is a Claude Code skill and how does the Relativity Astrophysics skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Relativity Astrophysics is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Science & Research category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: Science & Research · Sub-category: physics · Last updated: 2026-05-21

Relativity and astrophysics from special relativity through cosmology. Covers Einstein's postulates, time dilation, length contraction, Lorentz transformations, relativistic momentum and energy (E=mc^2), spacetime diagrams, the equivalence principle, curved spacetime (conceptual), gravitational lensing, black holes (Schwarzschild solution, Chandrasekhar limit), stellar evolution (main sequence through supernova), and cosmology (Big Bang, Hubble's law, CMB, dark matter, dark energy, FLRW metric). Use when analyzing systems at relativistic speeds, strong gravitational fields, stellar lifecycles, or cosmological scales.

Security AStatic scan found no risk patternsHow grading works ›

About this skill (catalog notes)

Relativity Astrophysics includes explicit scope boundaries (an explicit 'when not to use' or 'out of scope' section). At roughly 3,071 words the SKILL.md is on the longer end of the catalog distribution.

Indexed lastmod: 2026-05-21
Catalog position: Science & Research · physics
Indexed related skills: 10

How Relativity Astrophysics fits the catalog

Relativity Astrophysics sits in the Science & Research category under the physics sub-topic in the ClaudSkills catalog. There are 10 related skills indexed alongside it; comparing a few before installing usually reveals which fits your workflow best.

These notes are auto-generated from features detected in the SKILL.md file and from this catalog's structure — they aren't part of the source repository.

From the source SKILL.md

Relativity and astrophysics together describe the universe at its most extreme — near the speed of light, near collapsed stars, and across cosmic timescales. Special relativity (Einstein, 1905) resolved the conflict between Newtonian mechanics and Maxwell's electromagnetism. General relativity (Einstein, 1915) replaced Newtonian gravity with the geometry of curved spacetime. Astrophysics applies these frameworks alongside nuclear physics and thermodynamics to explain stellar evolution, black holes, and the large-scale structure of the cosmos. This skill covers both relativities, stellar…

What this skill does

Relativity Astrophysics is a community-contributed Claude Code skill in the physics sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/relativity-astrophysics/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when analyzing systems at relativistic speeds, strong gravitational fields, stellar lifecycles, or cosmological scales.

Who uses this skill

The Relativity Astrophysics Claude Code skill is built for researchers, data scientists, academics, and analysts working with complex data and scientific literature. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 115,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/relativity-astrophysics
curl -L https://claudskills.com/skills/relativity-astrophysics/SKILL.md \
  -o ~/.claude/skills/relativity-astrophysics/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/relativity-astrophysics/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/relativity-astrophysics/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\relativity-astrophysics\SKILL.md on Windows. See the full install guide for step-by-step instructions.

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Relativity Astrophysics Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/relativity-astrophysics/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the Relativity Astrophysics skill do?

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

When should I use the Relativity Astrophysics skill?

Use Relativity Astrophysics when your Claude Code task falls under the Science & Research category — specifically in the physics area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Relativity Astrophysics" or describe the task and let Claude pick). Browse related skills at /category/science/.

What is a Claude Code skill and how does the Relativity Astrophysics skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Relativity Astrophysics is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Science & Research category. Learn more at /learn/what-is-a-claude-skill/.

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA

ClaudSkills. (2026). Relativity Astrophysics [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/relativity-astrophysics/

BibTeX

@misc{relativity-astrophysics-2026,
  author    = {ClaudSkills},
  title     = {Relativity Astrophysics [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/relativity-astrophysics/}
}

Embed this skill

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Badge

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Security scan

Grade A · scanned 2026-06-13 — free static scan against the OWASP Agentic Skills Top 10.

No risk patterns were found in any of the ten OWASP-aligned categories. How grading works ›

✓ Prompt injection
✓ Data exfiltration
✓ Supply chain
✓ Reverse shell
✓ Credentials
✓ Execution
✓ Filesystem
✓ Persistence
✓ Obfuscation
✓ Network

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Browse all Science & Research skills → Top 100 skills

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