We present spectral analysis from XMM-Newton observations of the Vela pulsar .
We analyzed thermal emission from the pulsar dominating below \sim 1 
keV since extracted spectra are heavily contaminated by nebular emission at higher energy .
Featureless high-resolution spectra of the Reflection Grating Spectrometer aboard XMM-Newton suggest the presence of a hydrogen atmosphere , as previously indicated by Chandra results .
Both the temperature and radius are consistent with those values deduced from Chandra .
The derived Chandra and XMM-Newton temperature of T ^ { \infty } \simeq ( 6.4 – 7.1 ) \times 10 ^ { 5 } K at its age of \sim 10 ^ { 4 } years is below the standard cooling curve .