Nasa said on Friday (Dec 27) that its Parker Solar Probe was "safe" and operating normally after successfully completing the closest-ever approach to the Sun by any human-made object.

The spacecraft passed just 3.8 million miles (6.1 million km) from the solar surface on Dec 24, flying into the sun's outer atmosphere called the corona, on a mission to help scientists learn more about Earth's closest star.

The agency said the operations team at the Johns Hopkins Applied Physics Laboratory in Maryland received the signal, a beacon tone, from the probe just before midnight on Thursday.

The spacecraft is expected to send detailed telemetry data about its status on Jan 1, Nasa added.

Moving at up to 430,000 mph (692,000 kmh), the spacecraft endured temperatures of up to 1,800 degrees Fahrenheit (982 degrees Celsius), according to the Nasa website.

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