Sometimes humans get ahead of ourselves. We embark on grand engineering experiments without really understanding what the long-term implications of such projects are. Climate change itself it a perfect example of that - no one in the early industrial revolution realized that, more than 100 years later, the emissions from their combustion engines would increase the overall global temperature and risk millions of people's lives and livelihoods, let alone the impact it would have on the species we share the world with. According to a new release from the Salata Institute at Harvard, we seem to be going down the same blind path with a different engineering challenge in this century - satellite megaconstellations.
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Does dark matter actually exist? New theory says it could be gravity behaving strangely
"It highlights gravity's possible hidden complexity and invites a reevaluation of where dark matter effects originate."
This Week's Sky at a Glance, February 6 – 15
The Winter Hexagon encompasses the brightest winter stars. Near Orion, the Big Dog prances and the Hare crouches. And the moonless dark this week opens telescopic deep-sky depths.
Sophie Adenot ready for first space mission
Video: 00:03:58
ESA astronaut Sophie Adenot is preparing to launch to the International Space Station for her first space mission: εpsilon.
Earth from Space: Olympic view
Image: With the 2026 Winter Olympics officially opening today, the Copernicus Sentinel-2 mission brings us a striking view of northern Italy, highlighting several key Olympic venues.
The curious case of why methane spiked around Covid
With fewer cars on the road, planes in the air and factories running, the skies seemed cleaner during the Covid-19 pandemic. However, while there was a decline in pollutants such as nitrogen dioxide, scientists were surprised to see that methane surged in the early 2020s and then dropped – and now they know why.
The "Little Red Dots" Observed by Webb Were Direct-Collapse Black Holes
The James Webb Space Telescope (JWST ) was designed to look back in time and study galaxies that existed shortly after the Big Bang. In so doing, scientists hoped to gain a better understanding of how the Universe has evolved from the earliest cosmological epoch to the present. When Webb first trained its advanced optics and instruments on the early Universe, it discovered a new class of astrophysical objects: bright red sources that were dubbed "Little Red Dots" (LRDs). Initially, astronomers hypothesized that they could be massive star-forming regions, but this was inconsistent with established cosmological models.
The 10 bleakest space movies of all time
From spaghettified convicts to doomed interplanetary liners, these space movies really pile on the misery.
Is There A Link Between Primordial Black Holes, Neutrinos, and Dark Matter?
Humanity has worked itself into a position where we can detect a single high-energy particle from space and wonder where in Nature it came from. Billions of people likely don't care at all about such matters, but for those that are naturally curious and are fortunate enough to have the time to indulge their curiosity, an extremely energetic neutrino detected in 2023 was a remarkable event, and may even turn out to be an historic one.
Astrophotographer captures the 'Flaming Star Nebula' ablaze in deep-space (photo)
Ionized clouds give the impression of flames surrounding the star AE Aurigae.
China joins race to develop space-based data centers with 5-year plan
China will work on establishing space-based data centers as a part of a larger five-year plan to expand the nation's already significant presence in space.
This week's "Starfleet Academy" episode, "Series Acclimation Mil", is a near-perfect "DS9" sequel
What happened to Captain Benjamin Sisko? This episode won't give you any answers, but it asks all the right questions.
Now's your best chance to see Mercury all year — Here's what you need to know
Mercury puts on its best evening show of 2026 this February, with bright views after sunset and a helpful crescent moon.
Could a toxic chemical in Mars dirt help us build a Red Planet base?
Perchlorate, a toxic substance found in Mars dirt, could help the bacterium Sporosarcina pasteurii strengthen bonds between particles of regolith.
A presidential greeting ahead of Sophie Adenot's first spaceflight
ESA Director General Josef Aschbacher joined French President Emmanuel Macron at the Élysée Palace for an event celebrating the first spaceflight of ESA astronaut Sophie Adenot.
Review: Dwarf Lab's New Dwarf Mini Smart Telescope
Dwarf Lab’s newest entry into the smartscope market is also the smallest yet.
NASA chief flies over Artemis 2 moon rocket | Space photo of the day for Feb. 5, 2025
NASA Administrator Jared Isaacman took Secretary of Defense Pete Hegseth for a ride over the Artemis 2 launch pad recently.
Our round-up of the best NASA Artemis 2 gear on planet Earth
From Lego and stickers to hats and mugs, we've rounded up the best NASA Artemis 2 swag you can buy for the space and rocket fan in your life, everything from soup to nuts!
Will a bright comet adorn our early spring sky? Why astronomers are getting excited about Comet C/2026 A1 (MAPS)
A new comet approaching the sun has caught the attention of astronomers, primarily because of its lineage. It appears to belong to a group of comets that in some cases have briefly become outstandingly bright objects.
