Dados Astronômicos

O universo de informações em português

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Imagem astronômica do dia: JWST Images The Lion's Head Nebula
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JWST Images The Lion's Head Nebula

Are we looking at the future of our Sun? The James Webb Space Telescope captured today’s composite image of the Lion’s Head Nebula (NGC 2392) with its NIRCam and MIRI instruments. The Lion’s Head Nebula is the remnant of a Sun-like star. This star was unable to sustain the nuclear fusion in its core needed to remain stable. It began to shed layers of gas and dust into space, forming this planetary nebula. A hot stellar core, called a white dwarf, is left behind within the lion’s nose. Do not boop this nose! Intense radiation from the white dwarf is ionizing the gas as it expands, creating the irregular bubble that makes up the lion’s face. Dust clumps that have survived the white dwarf’s radiation and a cloud of ionized gas make up the lion’s mane. This new and more detailed view of the ne...

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NASA

Building Foresight for Earth Science, featuring Lindsey Jacobson

NASA’s Earth-observing satellite missions track dozens of features of a changing planet — aerosols, sea levels, land cover, cloud cover — over years and decades. Sustaining that record for the scientific and operational communities who depend o...

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NASA

Roman Space Telescope Travels to SpaceX Hangar

NASA’s Nancy Grace Roman Space Telescope, encapsulated in its payload fairing, travels from the Payload Hazardous Servicing Facility to the SpaceX hangar at Launch Complex 39A at NASA’s Kennedy Space Center on Tuesday, Aug. 25, 2026, ahead of mating ...

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NASA

NASA Johnson Pilots Chase Moon’s Shadow for Eclipse Science 

During the Aug. 12 total solar eclipse over Europe, scientists aimed to study a long-standing mystery: why the Sun’s outer atmosphere, the corona, is far hotter than its visible surface. Capturing the data they needed meant being in exactly the right...

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NASA

NASA Sets Spacewalk for Station Maintenance, Live Coverage Planned

NASA will provide coverage as two astronauts step outside the International Space Station on Tuesday, Sept. 1, to replace a spacecraft navigational aid and complete several maintenance tasks in support of space station operations. Watch live coverage...

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Imagem sobre: NASA Begins Moon Mission Plume-Surface Interaction Tests
NASA

NASA Begins Moon Mission Plume-Surface Interaction Tests

EDITOR’S NOTE: This story, originally published in December, was revised Aug. 26, 2026 with an update on a new phase of testing, including video from a recent test run and new images. To help NASA and commercial partners better understand the science...

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NASA

Contractor to Civil Servant: NASA Welcomes Jeret Howard

At 17, Jeret Howard raised his right hand to serve his country as a United States Army combat medic in Iraq. This past summer, he raised his right hand again at NASA’s Stennis Space Center near Bay St. Louis, Mississippi. Hired as a civil servant und...

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Imagem sobre: MTG-I2 ready for launch
ESA

MTG-I2 ready for launch

Video: 00:00:31 The Meteosat Third Generation-Imager2 (MTG-I2) satellite, is ready for launch on board an Ariane 6 launcher from Europe’s Spaceport in French Guiana. Lift off is scheduled for 27 August 2026 at 22:10 CEST (17:10 local...

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Imagem sobre: Second spacewalk completed for Sophie Adenot
ESA

Second spacewalk completed for Sophie Adenot

ESA astronaut Sophie Adenot and NASA astronaut Anil Menon successfully completed US EVA-98 at 20:57 CEST on Tuesday 25 August. It was Sophie’s second spacewalk, and the 32nd conducted by a European astronaut.   

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Imagem sobre: Watch live: MTG-I2 set for liftoff
ESA

Watch live: MTG-I2 set for liftoff

The next Meteosat Third Generation Imager satellite (MTG-I2) is set for liftoff on flight VA270 on an Ariane 6, from Europe’s Spaceport in French Guiana. It will complete the first family of MTG satellites, which will deliver data for weather for...

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Imagem sobre: Week in images: 17-21 August 2026
ESA

Week in images: 17-21 August 2026

Week in images: 17-21 August 2026 Discover our week through the lens

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Imagem sobre:  From spy satellite to space telescope: The unlikely origins of NASA's Roman Space Telescope
Space.com

From spy satellite to space telescope: The unlikely origins of NASA's Roman Space Telescope

At the heart of this next-gen space telescope lies the parts of old spy satellites.

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Imagem sobre:  Astronomers discover hot watery exoplanet destined to be swallowed by its star
Space.com

Astronomers discover hot watery exoplanet destined to be swallowed by its star

A newly discovered water dominated exoplanet is in hot-water literally and figuratively, it orbits so close to its parent star it is headed to a fatal collision that will see it devoured. ...

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Imagem sobre:  A black star in a false Spanish twilight: Here's the story of my 1st total solar eclipse
Space.com

A black star in a false Spanish twilight: Here's the story of my 1st total solar eclipse

I journeyed to the path of totality in Spain to watch the Aug. 12 total solar eclipse with a group of passionate citizen scientists. Here's my story. ...

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Imagem sobre:  Massive space mirrors could be 40 times brighter than the full moon, astronomers warn. 'It will be worse than big cities like London'
Space.com

Massive space mirrors could be 40 times brighter than the full moon, astronomers warn. 'It will be worse than big cities like London'

Sun-reflecting space mirrors proposed by U.S. startup Reflect Orbital will have an even more devastating effect on the night sky around the world than previously thought, a study has found. ...

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Imagem sobre:  Chance gaze at old Hubble Telescope image leads to discovery that could reveal dark matter's secrets
Space.com

Chance gaze at old Hubble Telescope image leads to discovery that could reveal dark matter's secrets

On a morning train commute, this former scientist found a stellar surprise in an old Hubble image.

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Imagem sobre:  Heat shield under fire | Space photo of the day for Aug. 26, 2026
Space.com

Heat shield under fire | Space photo of the day for Aug. 26, 2026

This little satellite is doomed.

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