Yn nhawelwch teithiog y Tundra Arctica, roedd y gwynt yn chwyrlïo dros yr eira gwyn.

In the traveling silence of the Arctic Tundra, the wind swirled over the white snow.

Roedd Gethin, gwyddonydd brwdfrydig, yn bwyso dros ei ddyfais gymhleth, gwynt yn ei wallt du.

Gethin, an enthusiastic scientist, leaned over his complex device, wind in his black hair.

Roedd popeth o gwmpas yn ymddangos yn ddim byd ond gewch.

Everything around seemed to be nothing but a void.

Eto i gyd, nid oedd Gethin ar ben ei hun.

Yet, Gethin was not alone.

Yn agos, roedd Eira, ffotograffydd anturus, yn taer geisio cipio tlysni'r goleuni gogleddol.

Nearby, Eira, an adventurous photographer, was eagerly trying to capture the beauty of the northern lights.

Rhywbryd, byddai’n rhaid iddi ddod ag atgofion o’r awyrgylch hudolus hwn am ei harddangosfa nesaf.

At some point, she would need to bring memories of this enchanting atmosphere for her next exhibition.

Wrth edrych, roedd Rhys, arweinydd yr alldaith, yn poeni am ddiogelwch y criw.

Looking on, Rhys, the expedition leader, worried about the crew's safety.

Roedd yr hydref yn torri draw at galedwch arian y gaeaf.

Autumn was giving way to the harshness of winter's silver.

Ac wrth iddi nesau at Galan Gaeaf, roedd storm yn symud yn barod ar draws y mynyddoedd eira.

As Halloween approached, a storm was already moving across the snowy mountains.

"Dylwn i fod ar fynd," dwedodd Rhys, "rhaid i ni gadw'n ddiogel.

"I should be going," said Rhys, "we must stay safe.

Mae’r cyflenwadau’n dirwyn i ben."

The supplies are running low."

Roedd ei bryder yn cynyddu wrth i’r gwyntoedd cryfachu.

His concern grew as the winds strengthened.

Nid oedd Rhys wedi disgwyl bod yn gorfod delio â’r fath orwel.

Rhys hadn't expected to deal with such a horizon.

Wrth i’r gwyntoedd bywiogi, a’r eira ddechrau stormio, penderfynodd Eira fynd ar ei chyfeiriad ei hun, anwybyddu rhybuddion Rhys.

As the winds invigorated and the snow began to storm, Eira decided to venture off on her own, ignoring Rhys's warnings.

Ei tharged oedd y llun perffaith, er bod amodau'n prysu’n waeth.

Her target was the perfect picture, even as conditions rapidly worsened.

Roedd Gethin wedi tosturio am waith gwyddonol, ond wrth weld Eira’n diflannu i ardal yn y tywyllwch, fe wyddai nad oedd modd gadael hyn heb gynllun.

Gethin was engrossed in scientific work, but seeing Eira disappear into the darkness, he knew he couldn’t leave without a plan.

"Rhaid i ni fynd amdani," dywedodd wrth Rhys, “gwaetha’r modd y rhaid ein uniaethu â hi.”

"We’ve got to go for it," he told Rhys, "unfortunately, we must identify with her."

Roedd Rhys yn ei ddigio, ond roedd Gethin yn gywir.

Rhys was irritated, but Gethin was right.

Trodi yn y gwyntoedd cryfion, daethon nhw o hyd i Eira yn iawn ar y tiriogaeth oer.

Battling the strong winds, they found Eira safe in the cold territory.

Yna, fel hud, dechreuodd yr awyr ffrwydro mewn swyn; y goleuni gogleddol yn dawnsio.

Then, like magic, the sky began to explode with charm; the northern lights dancing.

Roedd yn teimlo’n fyw ac eithr nod ond i weld cymaint o gamddealltwriaeth yn cael ei ollwng rhwng y tri.

It felt alive, except that so much misunderstanding had been released between the three.

Roedd yr alldaith yn dod i ben mewn coupe o wefr a diogelwch.

The expedition was coming to an end with a mix of thrill and safety.

Roedd cryfder dynol a cherdod proffesiynol o flaen Gethin.

There was human strength and professional dedication in front of Gethin.

Roedd Eira wedi cael llun o’r goleuni heb fwg, ac roedd ei pharch tuag at natur wedi dyfnhau.

Eira had captured the lights without obstruction, and her respect for nature had deepened.

Treuliwyd yr wythnos ôl gyda gwaredu’r pethau oedd tan ymrafael, ond gwelodd y criw ei ddiogelwch fel y bryngaer drwyddo i gyd.

The following week was spent resolving lingering issues, but the crew saw their safety as the fort through it all.

Roedd Rhys wedi llwyddo i arwain ei englyn drosodiadol, yn dangos arweiniad calon o dewis ac ystyriaeth.

Rhys managed to lead his transcendent crew, showing heartfelt leadership and consideration.

Roedd eu lle, eu tam nesaf, ac i gyd mewn gorchwyl dewr; tawelwch y Tundra, yn enwog am eiriau tlws y goleuni.

Their place, their next phase, all in a brave task; the silence of the Tundra, famous for the beautiful words of the lights.