| AURORABOREALIS | Phenomenon of the northern ionosphere (6,8) |
| HEAVISIDELAYER | Another name for the E region of the ionosphere |
| VERNE | Author of Around the World in Eighty Days whose novel The Green Ray is named after the rare optical phenomenon of the same name (5) |
| REDEEMER | Will save us reviewing the overnight phenomenon of The Dreamers - without the introduction it could be for The Birds (8) |
| MOON | Satellite whose beams light up the centre of 13 Lewisian standing stones every 18.6 years during the phenomenon of the lunar standstill (4) |
| ECHO | Oread said to be a personification of a Greek word for "sound" and whose name is given to the phenomenon of the reflection of sound waves (4) |
| MEISSNEREFFECT | The phenomenon of magnetic flux reduction when a superconductor is cooled below its critical temperature (8,6) |
| FAB | Beatlemania was a phenomenon of the 60s thanks to the ... Four from Liverpool |
| REDSHIFT | Cosmological phenomenon of the lengthening of light's wavelengths, indicating an expanding universe (3,5) |
| OPART | Cultural phenomenon of the '60s |
| LISZTOMANIA | Musical phenomenon of the 1840s |
| TULIP | ___ mania (botanical phenomenon of the Dutch Golden Age) |
| AURORA | Luminous phenomenon of the polar atmosphere (6) |
| TULIPMANIA | Market phenomenon of the 1630s Dutch Republic |
| DOTCOM | ___ bubble (economic phenomenon of the late 1990s) |
| SKIP | The propagation of radio waves reflected or refracted back toward Earth from the ionosphere. (4) |
| APPLETON | Sir Edward Victor -; physicist awarded a Nobel Prize for proving the existence of the ionosphere (8) |
| DLAYER | The lowest region of the ionosphere, which reflects low-frequency radio waves |
| HEAVISIDE | Physicist after who a layer of the ionosphere was named |
| STARLIGHT | Cosmogonical or primordial celestial phenomenon of stellar luminosity that is an astronomer or galactic gazer's glee; or, the astrophel of Spenser, the poetiser of a faerie (9) |
