Tag

Earth Observation

All articles tagged with #earth observation

science2 days ago•6 min saved

Earthset: Six decades of warming since Apollo's Earthrise

Earthrise to Earthset uses two images taken 58 years apart to highlight how CO2 rose from about 320 ppm in 1968 to ~430 ppm in 2026 and the global mean temperature climbed about 1.2°C, fueling more extreme heat, Arctic ice loss, glacier melt and sea-level rise. The warming tracks with increasing Earth energy imbalance and is amplified by El Niño events; with forecasts of another El Niño later in 2026, temperatures could push past recent records, underscoring the urgency of reaching net-zero emissions.

via The Conversation|

#climate-change #earth-observation #el-nino

science1 month ago•96 min saved

Three Guyana rivers merge into a color-splashed waterway seen from space

A 2023 Landsat-8 image captures the moment when Guyana’s Cuyuni, Mazaruni and Essequibo rivers converge near Bartica to form a large waterway with a striking color split. The lighter Cuyuni carries more suspended sediment, while the Mazaruni and Essequibo are darker due to tannins from vegetation decay; the different densities of the river waters slow mixing at the junction, creating the half-and-half effect that reflects both the country’s geology (the Guiana Shield) and upstream mining impacts.

via Live Science|

#earth-observation #guyana #landsat-8

science2 months ago•4 min saved

Sentinel-2A Captures Earth After Dark in Nighttime Imaging Trial

ESA’s daylight-focused Sentinel-2A was activated during night passes and produced unexpectedly clear images of gas flares in Qatar and Iraq, a wildfire in India, and fishing boats off South Korea, demonstrating potential for nighttime Earth observation and informing future mission requirements as the Copernicus program progresses with additional Sentinel-2 satellites.

via The Daily Galaxy|

#copernicus #earth-observation #esa

science2 months ago•4 min saved

Sentinel-2 Goes Night: ESA Tests Nighttime Imaging for Next-Generation Mission

ESA tested Sentinel-2A’s ability to image at night, obtaining useful nighttime observations of gas flares, wildfires, city lights and fishing boats, to inform the design of the future Sentinel-2 Next Generation mission while Sentinel-2B and -2C continue core operations.

via European Space Agency|

#copernicus #earth-observation #night-imaging

science-and-technology3 months ago•4 min saved

Sentinel-1D Debuts with Stunning Images Just 50 Hours Post-Launch

Sentinel-1D, Europe's latest Earth observation satellite, achieved a record-breaking 50-hour turnaround from launch to first images, capturing high-resolution radar data of Antarctica, Europe, and maritime activity, demonstrating rapid response capabilities and advancing climate and environmental monitoring.

via The Daily Galaxy|

#climate-change #copernicus #earth-observation

science-and-technology3 months ago•2 min saved

SpaceX Kicks Off 2026 with Multiple Satellite Launches and Sightings

SpaceX launched the Cosmo-SkyMed Second Generation Flight Model 3 satellite for Italy on January 2, 2026, using a Falcon 9 rocket from Vandenberg, marking the first Falcon launch in 16 days after previous delays. The satellite, designed for dual civilian and military Earth observation, will operate in a Sun-synchronous orbit and utilize synthetic aperture radar to capture images through clouds and darkness, enhancing Italy's defense and research capabilities.

via Spaceflight Now|

#cosmo-skymed #earth-observation #falcon-9

science3 months ago•0 min saved

NASA Satellites Capture Massive Tsunami Triggered by Kamchatka Earthquake

NASA's satellites captured a striking image of a massive tsunami, highlighting the power of earth observation technology in monitoring natural disasters.

via bgr.com|

#disaster #earth-observation #nasa

science3 months ago•5 min saved

NASA Satellite Captures Stunning Image of Medusa Pool on Dec. 24, 2025

NASA's Landsat 9 satellite captured a rare clear view of Vindication and Candlemas Islands in the remote South Sandwich Islands, revealing volcanic features, erosion patterns, and atmospheric wave clouds, providing valuable data on Earth's extreme environments and climate processes.

via Space|

#earth-observation #medusa-pool #nasa

science4 months ago•2 min saved

Satellite Images Reveal the Secrets of the Eye of the Sahara

The 'Eye of the Sahara,' or Richat Structure, is a 50-kilometer-wide geological formation in Mauritania, visible from space and formed by ancient geological uplift and erosion. Recent satellite imagery from ESA reveals its layered sedimentary rocks, signs of erosion, and some desert life, providing valuable insights into Earth's geological history and ecosystem, showcasing ESA's role in Earth observation.

via The Daily Galaxy|

#earth-observation #esa #geology

science-and-technology5 months ago•5 min saved

Ariane 6 Launches Sentinel-1D and Mysterious Sky Swirls Explored

Sentinel-1D, the last of the first-generation Sentinel-1 satellites, was successfully launched into orbit aboard an Ariane 6 rocket from French Guiana, completing the Copernicus Earth observation mission that provides critical radar data for environmental monitoring and disaster response.

via European Space Agency|

#ariane-6 #copernicus #earth-observation

science5 months ago•2 min saved

Ariane 6 and Sentinel-1D Prepare for Major Space Launches

Europe's Ariane 6 rocket is launching its fourth mission, carrying the Sentinel-1D satellite for the EU's Copernicus program, which provides critical radar imagery for various applications, marking its third successful launch after debuting in July 2024.

via Space|

#ariane-6 #earth-observation #european-space-agency

environment6 months ago•55 min saved

Global Land Change Monitored Rapidly

The article discusses DIST-ALERT, an operational satellite-based system that rapidly detects and monitors global land cover changes at 30m resolution using NASA and ESA satellite data, providing critical information for conservation, land management, and policy enforcement, with high accuracy and low latency since 2023.

via Nature|

#dist-alert #earth-observation #environment

science6 months ago•4 min saved

NASA-ISRO Satellite Captures First Radar Images of Earth's Surface

NASA and ISRO's joint NISAR satellite has captured its first detailed radar images of Earth's surface, demonstrating its capabilities in monitoring land and ice surfaces for applications like disaster response and environmental management, with full science operations expected later this year.

via NASA (.gov)|

#earth-observation #isro #nasa

science6 months ago•9 min saved

Viewing the Planet from Both Above and Below

Photographers and astronauts Don Pettit and Babak Tafreshi collaborated to capture Earth from above and below, showcasing the planet's natural beauty and phenomena from the International Space Station and ground-based locations, highlighting the unique perspectives and the importance of human-led space photography.

via National Geographic|

#astronomy #earth-from-space #earth-observation

science6 months ago•16 min saved

Stunning Photos Reveal the Power of Climate Science

The article highlights the extensive efforts and advanced technologies used in climate science, including fieldwork in remote locations, ice core analysis, cloud research, and satellite monitoring, to understand Earth's climate system and address global warming.

via Quanta Magazine|

#atmospheric-gases #climate-modeling #climate-science