Satellite Tracking Guides & Space Updates

2026-08-21

Can You See the ISS, Hubble or Starlink Tonight? Complete Viewing Guide

Compare ISS, Hubble and Starlink visibility and learn how to check which satellites may be visible from your location tonight.

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2026-08-21

Why a Satellite’s Tracker Position Can Change After You Refresh

Time, new orbital records, object identity and map display choices can all move a tracker marker.

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2026-08-21

How Accurate Are Live Satellite Trackers?

A tracker is a time-dependent orbital calculation, not a direct camera feed or guaranteed optical sighting.

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2026-08-21

Lucy, Psyche and Hera: Three Asteroid Missions with Three Different Questions

A Trojan tour, a metal-rich world and a planetary-defence test show how varied asteroid exploration has become.

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2026-08-21

Europa Clipper vs JUICE: Two Missions to Jupiter’s Ocean Worlds

NASA and ESA are approaching Jupiter’s icy moons with complementary targets, instruments and tours.

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2026-08-21

TLE/SGP4 vs JPL Horizons: Why Space Trackers Use Different Engines

Earth satellites and interplanetary missions require different data models, reference frames and expectations.

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2026-08-21

How GPS Satellite Geometry Changes Your Position Accuracy

Your receiver needs more than strong signals: the directions of visible GPS satellites also affect the quality of a position fix.

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2026-08-21

GOES-East Satellite: How It Tracks U.S. Weather, Hurricanes and Storms

Understand how the current GOES-East weather satellite watches the United States and nearby storm-forming regions from geostationary orbit.

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2026-08-21

Polar vs Geostationary Weather Satellites: Why We Need Both

One class scans changing strips of Earth; the other watches the same hemisphere continuously. Together they strengthen forecasting.

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2026-08-21

Why Parker Solar Probe Is the Fastest Human-Made Object

Gravity assists and repeated close approaches to the Sun explain Parker Solar Probe’s extraordinary speed.

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2026-08-21

How Earth Still Communicates with Voyager Across Interstellar Space

Huge antennas, precise pointing, weak signals and long light times keep the Voyager conversation alive.

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2026-08-21

Voyager 1 vs Voyager 2: Similar Spacecraft, Very Different Journeys

The twin Voyager probes launched weeks apart, followed different planetary routes and now travel through interstellar space.

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2026-08-21

Tracking Hubble Is Not the Same as Seeing What Hubble Sees

A live Hubble position shows the observatory’s orbit—not its current science target or a live camera feed.

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2026-08-21

Why JWST Orbits Near L2 Instead of Circling Earth

L2 helps the James Webb Space Telescope keep its optics cold and its major heat sources on one side.

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2026-08-21

Hubble vs James Webb: Why Their Trackers Look Completely Different

Hubble circles Earth while Webb travels around the Sun near L2, so the two observatories need different tracking methods.

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2026-08-21

Is That Starlink in the Sky? How to Identify Starlink Satellites Tonight

Saw a bright moving light or a line of lights tonight? Use motion, flashing behavior and pass predictions to tell Starlink from aircraft.

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2026-08-21

Starlink Train Tonight in the USA: How to Find and Track It

Learn what a Starlink train looks like, why newly launched satellites spread out, and how to track Starlink passes from your U.S. location.

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2026-08-21

Where Should I Look for a Satellite Tonight? Azimuth & Elevation Explained

Turn tracker angles into simple directions so you know where to face and how high to look for a satellite tonight.

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2026-08-21

Satellite Passing Over Me Tonight: How to Find Satellites From Your Location

Learn how to find satellites passing over your location tonight and how to interpret pass time, direction, elevation and visibility.

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2026-08-21

ISS vs Tiangong: Two Space Stations, Two Tracking Experiences

Compare the ISS and Tiangong as orbiting laboratories, then learn why their ground tracks and viewing opportunities differ.

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2026-08-21

What Time Can You See the ISS Tonight? Why Sunset and Sunrise Matter

Understand why the best ISS viewing opportunities cluster near twilight and how to choose a visible pass from your location.

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2026-08-21

How to See the ISS Tonight in the USA: Live Pass Times & Viewing Guide

Use your location to check upcoming ISS passes, then learn exactly when and where to look in the U.S. night sky.

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