Comet NEOWISE seen from the ground. Photo: NASA/Bill Ingalls

The new comet gracing skies in the Northern Hemisphere provides scientists with an opportunity to learn more about these mysterious, icy objects from relatively close range.

Why it matters: Comets are thought to be leftovers from the dawn of the solar system. Learning more about their nature could help scientists piece together answers about how our part of space formed and even how water was delivered to Earth billions of years ago.

Driving the news: Comet NEOWISE can now be seen with the naked eye by observers on the ground, but NASA scientists and others are training powerful telescopes in space and on Earth on the comet.

  • "We now have a really spectacular look at it. We can really study it up close with many, many different instruments and cameras. So it offers the opportunity to gather a lot of extra data," Amy Mainzer, the NEOWISE project's principal investigator, said during a press briefing.
  • Scientists are planning to gather data about the light signature emitted by the comet in order to learn more about its chemical makeup.
  • Many comets break up when they make their close approaches to the Sun, so studying Comet NEOWISE's survival could help shed some light on why the structures of some comets were built to last while others weren't.

The big picture: It's rare for a comet this large and bright to come this close to Earth, and this comet won't be back around again for about another 7,000 years.

  • NASA's Parker Solar Probe and astronauts on the International Space Station have already caught glimpses of the comet.
  • The space agency may also plan to get a look at it with the Hubble Space Telescope and other large telescopes once the comet moves a bit farther from the Sun, making observation safer for the sensitive observatories.

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Aug 11, 2020 - Science

The Perseid meteor shower peaks this week

A perseid meteor in 2019. Photo: Bob Riha Jr./Getty Images

The Perseid meteor shower — one of the best cosmic shows of the year — hits its peak this week, and interested observers with dark skies around the world should be able to see it.

The state of play: The peak of the shower is expected to occur late tonight and into the wee hours of Wednesday morning. The best time to catch sight of some streaking meteors is right after the Sun sets until the Moon rises just after local midnight, according to Sky & Telescope.

Updated 6 hours ago - Politics & Policy

Coronavirus dashboard

Illustration: Aïda Amer/Axios

  1. Global: Total confirmed cases as of 9 p.m. ET: 20,755,406 — Total deaths: 752,225— Total recoveries: 12,917,934Map.
  2. U.S.: Total confirmed cases as of 9 p.m. ET: 5,246,760 — Total deaths: 167,052 — Total recoveries: 1,774,648 — Total tests: 64,831,306Map.
  3. Politics: House Democrats to investigate scientist leading "Operation Warp Speed" vaccine projectMcConnell announces Senate will not hold votes until Sept. 8 unless stimulus deal is reached.
  4. 2020: Biden calls for 3-month national mask mandateBiden and Harris to receive coronavirus briefings 4 times a week.
  5. States: Georgia Gov. Brian Kemp to drop lawsuit over Atlanta's mask mandate.
  6. Business: Why the CARES Act makes 2020 the best year for companies to lose money.
  7. Public health: Fauci's guidance on pre-vaccine coronavirus treatments Cases are falling, but don't get too comfortable.

Trump says he intends to give RNC speech on White House lawn

President Trump speaking to reporters on South Lawn in July. Photo: Jabin Botsford/The Washington Post via Getty Images

President Trump told the New York Post on Thursday that he plans to deliver his Republican National Convention speech from the White House lawn, despite bipartisan criticism of the optics and legality of the location.

Why it matters: Previous presidents avoided blurring staged campaign-style events — like party conventions — with official business of governing on the White House premises, per Politico.