Tag Archives: satellites

Supertiny satellites launched

Cordell Grant, an aerospace engineer at the University of Toronto in Canada, assembles one of his team’s nanosatellites. These are the smallest space telescopes ever sent into Earth orbit. Credit: Johannes Hirn (Dunlap Institute for Astronomy & Astrophysics, University of Toronto)

Researchers are building simple, miniature satellites to bring down their costs and expand their availability

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Climate’s troublesome kids

During a climate event known as El Niño (shown on the left), the surface of the central and eastern Pacific Ocean warms along the equator (red). During a La Niña event (on the right), the same region cools (blue). Credit: NOAA

The recurring climate events El Niño and La Niña trigger long-lived changes to weather around the world

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Less ice, more seawater

Meltwater on the Greenland ice sheet carved this canyon.

Credit: Ian Joughin

Shrinking ice sheets contribute to rising sea levels, large-scale study confirms

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Watching our seas rise

Sandy-storm-surge_feature

Satellites, coral reefs, ancient Roman fishponds and sinking cities help us understand how humans are changing sea level

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A record Arctic melt

Arctic sea ice forms in the ocean, unlike glaciers and icebergs that form from land-based freshwater.

Credit: Andy Mahoney, National Snow and Ice Data Center

Satellites show summer 2012 sea ice covering the Arctic Ocean shrunk to a record low

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