Astronomie nieuws - NewsLocker

We Understand Rotating Black Holes Even Less Than We Thought

05-11-2024 20:44 via universetoday.com

Black holes are real. We see them throughout the cosmos, and have even directly imaged the supermassive black hole in M87 and our own Milky Way. We understand black holes quite well, but the theoretical descriptions of these cosmic creatures still have nagging issues. Perhaps the most famous issue is that of the singularity. According to the classical model of general relativity, all the matter that forms a black hole must be compressed into an infinite density, enclosed within a sphere of zero

Lees meer
Habitable Worlds are Found in Safe Places

05-11-2024 20:30 via universetoday.com

When we think of exoplanets that may be able to support life, we hone in on the habitable zone. A habitable zone is a region around a star where planets receive enough stellar energy to have liquid surface water. It’s a somewhat crude but helpful first step when examining thousands of exoplanets.
However, there’s a lot more to habitability than that.
In a dense stellar environment, planets in habitable zones have more than their host star to contend with. Stellar flybys and exploding

Lees meer
New Glenn Booster Moves to Launch Complex 36

05-11-2024 20:21 via universetoday.com

Nine years ago, Blue Origin revealed the plans for their New Glenn rocket, a heavy-lift vehicle with a reusable first stage that would compete with SpaceX for orbital flights. Since that time, SpaceX has launched hundreds of rockets, while Blue Origin has been working mostly in secret on New Glenn. Last week, the company rolled out the first prototype of the first-stage booster to the launch complex at Cape Canaveral Space Force Station. If all goes well, we could see a late November test on the

Lees meer
How Many Additional Exoplanets are in Known Systems?

05-11-2024 16:05 via universetoday.com

One thing we’ve learned in recent decades is that exoplanets are surprisingly common. So far, we’ve confirmed nearly 6,000 planets, and we have evidence for thousands more. Most of these planets were discovered using the transit method. though we there are other methods as well. Many stars are known to have multiple planets, such as the TRAPPIST-1 system with seven Earth-sized worlds. But even within known planetary systems there could be planets we’ve overlooked. Perhaps their

Lees meer
Advertentie
Lezing: De zoektocht naar een tweede aarde (Hoogeveen) - Astronomie.nl

05-11-2024 12:38 via news.google.com

Lezing: De zoektocht naar een tweede aarde (Hoogeveen) Astronomie.nl

Lees meer
Heel oud zwart gat consumeert materie met meer dan 40 keer zijn theoretische limiet

05-11-2024 11:05 via scientias.nl

De James Webb-telescoop heeft een bijzonder zwart gat ontdekt, genaamd LID-568. Wat het zo speciaal maakt, is de snelheid waarmee het zich voedt met materie. Die overschrijdt namelijk maar liefst veertig keer de Eddington-limiet. Dit is de maximale lichtkracht die een zwart gat kan bereiken. Als een object een lichtkracht heeft die groter is dan […]
Meer wetenschap? Lees de nieuwste artikelen op Scientias.nl .

Lees meer
Model laat zien hoe er water kon stromen op ijzige planeet Mars

05-11-2024 10:32 via astronieuws.nl

Lang geleden stroomden er rivieren op Mars en ontstond er een meer ter grootte van de Middellandse Zee onder een dik beschermend ijsdek, aldus wetenschapper Peter Buhler van het Planetary Science Institute (VS). De oorzaak: koolstofdioxide (CO2) bevroor uit de Marsatmosfeer en zette zich af op de kappen van bevroren water bij de polen. Op die manier werd de warmte uit het binnenste van Mars vastgehouden en nam de druk op het ijs toe. Dit zorgde ervoor dat ruwweg de helft van de totale watervoorr

Lees meer
Hubble and Webb are the Dream Team. Don't Break Them Up

05-11-2024 09:16 via universetoday.com

Many people think of the James Webb Space Telescope as a sort of Hubble 2. They understand that the Hubble Space Telescope (HST) has served us well but is now old, and overdue for replacement. NASA seems to agree, as they have not sent a maintenance mission in over fifteen years, and are already preparing to wind down operations. But a recent paper argues that this is a mistake. Despite its age, HST still performs extremely well and continues to produce an avalanche of valuable scientific result

Lees meer
Advertentie
Scientists Have Figured out why Martian Soil is so Crusty

05-11-2024 01:13 via universetoday.com

On November 26th, 2018, NASA’s Interior Exploration using Seismic Investigations, Geodesy, and Heat Transport (InSight) mission landed on Mars. This was a major milestone in Mars exploration since it was the first time a research station had been deployed to the surface to probe the planet’s interior. One of the most important instruments InSight would use to do this was the Heat Flow and Physical Properties Package (HP3) developed by the German Aerospace Center (DLR). Also known as

Lees meer

10 Nov 2024 09 Nov 2024 08 Nov 2024 07 Nov 2024 06 Nov 2024

05 Nov 2024

04 Nov 2024 03 Nov 2024 02 Nov 2024 01 Nov 2024 31 Oct 2024

Follow @news_astronomie on Twitter!