Lava in Hawaii so widespread it can be seen from space

The European Space Agency tweeted photos of the fissures spreading lava.

The spread of lava in the Puna district of Hawaii's Big Island has gotten so large it can be seen from space.

The photos were taken on May 23 and shared by the ESA on Friday.

The acreage covered by lava as of Friday night in Hawaii was 2,232 acres, officials said. The Civil Defense Agency also noted that 37 homes are "isolated" either due to lava surrounding them or roads being cut off by the flow.

There’s still a potential for lava to cut off all access to the Lower Puna area, which would trigger the helicopter evacuations officials have been planning.

As of Friday, there were 230 people in shelters, the agency said.

ABC News' Frank Elaridi, Alyssa Pone and Clayton Sandell contributed to this report.