Rebecca Zisser / Axios

Humans have stared at the sky for millennia trying to figure out what is out there and what it tells us about our place in the universe. One of the most mysterious things is everywhere around us — in the gaps between planets and people and particles hums something that scientists and philosophers have spent a long time trying to understand: Space. For as fundamental to our existence and experience as space is, it's hard to describe and define it.

So, we asked four experts a deceptively simple question: what exactly is space?

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Dan Primack, author of Pro Rata
1 hour ago - Economy & Business

Retail traders drove Snowflake and Unity Software's IPO surges

Illustration: Sarah Grillo/Axios

The story of last week's Snowflake and Unity Software IPOs had little to do with data warehousing or 3D game development, and lots to do with dizzying "pops" after pricing.

What happened: The Robinhood effect.

Updated 2 hours ago - Politics & Policy

Coronavirus dashboard

Illustration: Sarah Grillo/Axios

  1. Global: Total confirmed cases as of 10 a.m. ET: 31,103,347 — Total deaths: 961,435— Total recoveries: 21,281,441Map.
  2. U.S.: Total confirmed cases as of 10 a.m. ET: 6,813,984 — Total deaths: 199,525 — Total recoveries: 2,590,671 — Total tests: 95,108,559Map.
  3. Health: CDC updates guidances to say coronavirus can be spread through the air Nursing homes are evicting unwanted patients.
  4. Politics: Testing czar on Trump's CDC contradictions: "Everybody is right."
  5. Education: College students give failing grade on return to campus.
  6. Business: Unemployment concerns are growing.
  7. World: "The Wake-Up Call" warns the West about the consequences of mishandling a pandemic.
Ben Geman, author of Generate
3 hours ago - Energy & Environment

The climate stakes of the Supreme Court fight

Illustration: Aïda Amer/Axios

Ruth Bader Ginsburg's death and the battle over her vacant Supreme Court seat have real implications for energy and climate policy.

Why it matters: If President Trump replaces her, the court will likely become more skeptical of regulations that claim expansive federal power to regulate carbon under existing law, and perhaps new climate statutes as well.