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Launch centre
What leaves the ground next
Live sky
Tonight, over Adelaide
Orbit propagated locally from CelesTrak elements
Observer context
Calculated from the Sun's position for 34.93°S 138.60°E.
What these mean
Sunset is the moment the Sun's centre drops below the horizon. Astronomical darkness (Sun 18° below) is when faint nebulae and the Milky Way become visible from a dark site. Moon illumination is the fraction of the disc lit, not how bright the sky will be — a 30% moon still washes out faint targets.
International Space Station
Where is it right now?
Passes over Adelaide, next 24 hours
Geometric passes above 10° elevation. A pass is only visible if the station is in sunlight while your sky is dark.
News & discoveries
What the sky is telling us
Headlines and links only — the publishers keep the articles.
Space weather
The Sun's mood, measured
NOAA SWPC · near-real-time
Planetary K-index
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A 3-hourly planetary average of geomagnetic disturbance.
How to read the Kp index
Kp is a 0–9 scale of geomagnetic disturbance, computed every three hours from magnetometer stations worldwide. Below 4 is quiet. At 5 the storm reaches G1: high-latitude aurora and minor power-grid effects. At 7 or above it is a severe storm. Aurora chasing is a lie detector — Kp forecasts change, and the site always shows the observed value, not a prediction.
Why Bz matters more than speed
The solar wind carries a magnetic field. When its north–south component (Bz) turns negative, it couples with Earth's magnetic field and energy pours in. A fast wind with positive Bz usually does nothing dramatic; a slower wind with strongly negative Bz can light up the aurora. That is why both are plotted.
Imagery
Light worth travelling for
NASA Image & Video Library · archival
The wider universe
Machines that look outward
Curated mission reference · live numbers where the source allows
Nancy Grace Roman Space Telescope
A wider eye on the dark universe
Commissioning Roman is in space and being switched on, one instrument at a time.
Launched 30 August 2026. NASA reports Roman is completing commissioning; the first science images are still ahead of us.
When those images arrive, this section becomes the place to see them at full resolution — a mirror the size of Hubble's, with roughly a hundred times the sky in every exposure.
Official mission page ↗ Roman blog ↗
Roman's own science images do not exist yet. Nothing on this page is presented as Roman imagery.
Latest official updates
Discussion
Talk about it
Provenance